.page-faq {
  --acc: var(--summer);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 64px;
}

.page-faq .faq-crumb {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 24px 0 56px;
  background:
    radial-gradient(circle at 88% 4%, rgba(123, 201, 111, 0.22), transparent 46%),
    radial-gradient(circle at 6% 92%, rgba(108, 143, 184, 0.16), transparent 52%),
    var(--paper);
  border-bottom: var(--hair) solid var(--ink);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 6vw, 50px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 12px 0 16px;
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  margin: 0 0 24px;
}

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

.page-faq .faq-hero-visual .img-frame {
  transform: rotate(-1.2deg);
}

.page-faq .img-frame {
  max-width: 100%;
}

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

/* ---------- 三步流程 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: step;
}

.page-faq .faq-step {
  position: relative;
  background: var(--card);
  border: var(--hair) solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: 26px 20px 20px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 8px;
  background: var(--acc);
}

.page-faq .faq-step:nth-child(1) { --acc: var(--spring); }
.page-faq .faq-step:nth-child(2) { --acc: var(--summer); }
.page-faq .faq-step:nth-child(3) { --acc: var(--winter); }

.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-step h3 {
  font-size: 18px;
  font-weight: 800;
  margin: 10px 0 8px;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-tabs {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-faq .faq-tab {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num name count"
    "hint hint hint";
  align-items: center;
  gap: 6px 10px;
  height: 100%;
  padding: 18px 18px 16px;
  background: var(--card);
  border: var(--hair) solid var(--ink);
  border-top-width: 8px;
  box-shadow: var(--shadow-soft);
  color: var(--ink);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.page-faq .faq-tab--spring { border-top-color: var(--spring); }
.page-faq .faq-tab--summer { border-top-color: var(--summer); }
.page-faq .faq-tab--winter { border-top-color: var(--winter); }
.page-faq .faq-tab--autumn { border-top-color: var(--autumn); }
.page-faq .faq-tab--amber { border-top-color: var(--amber); }

.page-faq .faq-tab-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
}

.page-faq .faq-tab-name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.2;
}

.page-faq .faq-tab-count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  background: var(--mist);
  border-radius: 999px;
  padding: 2px 9px;
}

.page-faq .faq-tab-hint {
  grid-area: hint;
  font-size: 13px;
  line-height: 1.6;
  color: #3d5a51;
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hard);
  background: #fffdf7;
}

/* ---------- 教程分块 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 88px;
}

.page-faq .faq-block--spring { --acc: var(--spring); }
.page-faq .faq-block--summer { --acc: var(--summer); }
.page-faq .faq-block--winter { --acc: var(--winter); }
.page-faq .faq-block--autumn { --acc: var(--autumn); }
.page-faq .faq-block--amber { --acc: var(--amber); }

.page-faq .faq-block-grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-side-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  background: var(--acc);
  display: inline-block;
  padding: 3px 10px;
  border: var(--hair) solid var(--ink);
  margin: 0 0 14px;
}

.page-faq .faq-side .section-title {
  margin-top: 0;
}

.page-faq .faq-side-note {
  margin: 12px 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: #3d5a51;
  max-width: 26em;
}

.page-faq .faq-side-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-btn);
  text-decoration: none;
  border-bottom: 3px solid var(--amber);
  padding-bottom: 2px;
}

.page-faq .faq-side-link:hover,
.page-faq .faq-side-link:focus-visible {
  background: rgba(217, 139, 22, 0.14);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  background: var(--card);
  border: var(--hair) solid var(--ink);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 160ms ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 14px;
}

.page-faq .faq-item[open] {
  box-shadow: inset 6px 0 0 var(--acc), var(--shadow-soft);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  font-weight: 400;
  color: var(--acc);
  transition: transform 160ms ease;
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  background: var(--mist);
  padding: 4px 6px;
  line-height: 1;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  font-size: 16.5px;
  line-height: 1.55;
}

.page-faq .faq-a {
  padding: 0 18px 18px 18px;
  border-top: 1px dashed var(--mist);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-next {
  font-size: 13.5px;
  color: #3d5a51;
}

.page-faq .faq-next a {
  color: var(--ink-btn);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
}

/* ---------- 设备示意 ---------- */
.page-faq .faq-visual {
  margin-bottom: 20px;
}

.page-faq .faq-visual-cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #3d5a51;
  border-left: 4px solid var(--winter);
  padding-left: 10px;
}

/* ---------- 联系 ---------- */
.page-faq .faq-block--contact {
  border-top: var(--hair) solid var(--ink);
  padding-top: 40px;
}

.page-faq .faq-contact {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.page-faq .faq-contact-card {
  background: var(--card);
  border: var(--hair) solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: 24px 20px;
}

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--winter);
  display: inline-block;
  padding: 3px 10px;
  margin: 0 0 16px;
}

.page-faq .faq-contact-info {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact-info li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--mist);
  font-size: 14px;
}

.page-faq .faq-contact-info li:last-child {
  border-bottom: 0;
}

.page-faq .faq-contact-info span {
  flex: 0 0 76px;
  color: #3d5a51;
}

.page-faq .faq-contact-info strong {
  flex: 1 1 200px;
  word-break: break-word;
  font-weight: 700;
}

.page-faq .faq-contact-note {
  margin: 16px 0 20px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #3d5a51;
}

.page-faq .faq-contact-list h3 {
  font-size: 19px;
  font-weight: 800;
  margin: 0 0 16px;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-checklist li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  background: var(--card);
  border: 2px solid var(--ink);
  padding: 12px 14px;
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .faq-check-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  background: var(--spring);
  padding: 2px 6px;
  flex: 0 0 auto;
}

.page-faq .faq-contact-tail {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #3d5a51;
}

.page-faq .faq-contact-tail a {
  color: var(--ink-btn);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--amber);
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 36px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
  }

  .page-faq .faq-tabs {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-block-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px;
  }

  .page-faq .faq-q {
    font-size: 17.5px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block-grid {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .page-faq .faq-hero-grid {
    gap: 64px;
  }
}

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

  .page-faq .faq-hero-visual .img-frame {
    transform: none;
  }

  .page-faq .faq-tab:hover,
  .page-faq .faq-tab:focus-visible {
    transform: none;
  }
}
<<<END>>>