.page-faq {
  display: block;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: var(--paper-50);
  border-bottom: var(--line);
  padding: 28px 0 40px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--indigo-600);
  text-transform: uppercase;
}

.page-faq .faq-hero .eyebrow::before {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  background: var(--amber-500);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7.2vw, 78px);
  line-height: 1.03;
  letter-spacing: 0.01em;
  margin: 18px 0 0;
  color: var(--ink-900);
  max-width: 14ch;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: var(--prose);
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-700);
}

.page-faq .faq-hero-meta {
  border: var(--line);
  background: var(--paper-0);
  padding: 20px 22px 16px;
  box-shadow: var(--shadow-1);
  align-self: start;
}

.page-faq .faq-meta-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}

.page-faq .faq-meta-list {
  margin: 0;
}

.page-faq .faq-meta-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-300);
}

.page-faq .faq-meta-row:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-faq .faq-meta-row dt {
  font-size: 13.5px;
  color: var(--slate-500);
}

.page-faq .faq-meta-row dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  white-space: nowrap;
}

.page-faq .faq-meta-row:last-child dd {
  color: var(--amber-500);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-stepper {
  background: var(--indigo-900);
  border-bottom: 1px solid var(--indigo-600);
}

.page-faq .faq-stepper-wrap {
  padding-top: 0;
  padding-bottom: 0;
}

.page-faq .faq-stepper-list {
  display: flex;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-stepper-list li {
  flex: 0 0 auto;
  border-right: var(--hair-light);
}

.page-faq .faq-stepper-list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 15px 16px;
  color: rgba(247, 245, 240, 0.7);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-stepper-list a:hover,
.page-faq .faq-stepper-list a:focus-visible {
  color: var(--paper-0);
  background: rgba(245, 158, 11, 0.14);
}

.page-faq .faq-stepper-no {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--amber-500);
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-rail {
  display: none;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding: 46px 0 10px;
  border-top: var(--line);
}

.page-faq h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.22;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--ink-900);
}

.page-faq h3 {
  font-size: 17.5px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--ink-900);
}

.page-faq .faq-text {
  margin: 18px 0 0;
  max-width: var(--prose);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-700);
}

.page-faq .faq-note {
  margin: 16px 0 0;
  max-width: var(--prose);
  padding-left: 14px;
  border-left: 2px solid var(--amber-500);
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-500);
}

.page-faq .link {
  color: var(--indigo-600);
  text-decoration: underline;
  text-decoration-color: var(--line-300);
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}

.page-faq .link:hover,
.page-faq .link:focus-visible {
  color: var(--amber-500);
  text-decoration-color: var(--amber-500);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 30px;
  border: var(--line);
  background: var(--paper-0);
  box-shadow: var(--shadow-1);
}

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

.page-faq .faq-figure figcaption {
  border-top: var(--line);
  padding: 11px 15px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate-500);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: var(--line);
  counter-reset: faqstep;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: var(--line);
}

.page-faq .faq-step-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--amber-500);
  padding-top: 4px;
}

.page-faq .faq-step-body h3 {
  margin-bottom: 6px;
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table-scroll {
  margin: 28px 0 0;
  border: var(--line);
  background: var(--paper-0);
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--slate-500);
}

.page-faq .faq-table thead th {
  background: var(--ink-700);
  color: var(--paper-50);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: left;
  padding: 12px 16px;
  white-space: nowrap;
}

.page-faq .faq-table tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--indigo-900);
  padding: 13px 16px;
  vertical-align: top;
  white-space: nowrap;
}

.page-faq .faq-table td {
  padding: 13px 16px;
  vertical-align: top;
  color: var(--ink-700);
  border-bottom: var(--line);
  line-height: 1.7;
}

.page-faq .faq-table tbody tr:last-child td,
.page-faq .faq-table tbody tr:last-child th {
  border-bottom: 0;
}

.page-faq .faq-table tbody tr {
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-table tbody tr:hover {
  background: var(--amber-100);
}

.page-faq .faq-table .mono {
  color: var(--ink-900);
  font-weight: 600;
}

/* ---------- 方案卡 ---------- */
.page-faq .faq-plan-grid {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-faq .faq-plan {
  border: var(--line);
  border-top: 3px solid var(--indigo-600);
  background: var(--paper-0);
  padding: 20px 20px 22px;
}

.page-faq .faq-plan:nth-child(2) {
  border-top-color: var(--celadon-600);
}

.page-faq .faq-plan:nth-child(3) {
  border-top-color: var(--amber-500);
}

.page-faq .faq-plan-tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--indigo-900);
  background: var(--paper-50);
  border: 1px solid var(--line-300);
}

.page-faq .faq-plan p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-details-group {
  margin: 26px 0 0;
  border-top: var(--line);
}

.page-faq .faq-details {
  border-bottom: var(--line);
}

.page-faq .faq-details summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-details summary:hover,
.page-faq .faq-details summary:focus-visible {
  color: var(--indigo-600);
}

.page-faq .faq-details summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--amber-500);
}

.page-faq .faq-details[open] summary::after {
  content: "–";
}

.page-faq .faq-details-body {
  padding: 0 0 20px;
}

.page-faq .faq-details-body p {
  margin: 0 0 10px;
  max-width: var(--prose);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-700);
}

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

/* ---------- 故障卡 ---------- */
.page-faq .faq-trouble-grid {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-faq .faq-trouble {
  border: var(--line);
  border-left: 3px solid var(--indigo-600);
  background: var(--paper-0);
  padding: 20px 20px 20px 18px;
}

.page-faq .faq-trouble:nth-child(2) {
  border-left-color: var(--amber-500);
}

.page-faq .faq-trouble:nth-child(3) {
  border-left-color: var(--celadon-600);
}

.page-faq .faq-trouble:nth-child(4) {
  border-left-color: var(--danger-600);
}

.page-faq .faq-trouble h3 {
  margin-bottom: 12px;
}

.page-faq .faq-trouble-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}

.page-faq .faq-trouble-list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-trouble-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 7px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .faq-trouble-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px;
  height: 5px;
  background: var(--celadon-600);
  transform: rotate(45deg);
}

.page-faq .faq-trouble-signal {
  margin: 0;
  padding: 10px 12px;
  background: var(--celadon-100);
  border-left: 2px solid var(--celadon-600);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.page-faq .faq-safety {
  margin: 25px 0 0;
  padding: 20px 22px;
  background: var(--amber-100);
  border-left: 3px solid var(--amber-500);
}

.page-faq .faq-safety-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
}

.page-faq .faq-safety p:last-child {
  margin: 0;
  max-width: var(--prose);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact-section {
  padding-bottom: 56px;
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-faq .faq-contact-card {
  border: var(--line);
  background: var(--paper-0);
  padding: 20px 22px;
  box-shadow: var(--shadow-1);
}

.page-faq .faq-contact-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}

.page-faq .faq-contact-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(21px, 5vw, 28px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--amber-500);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-value--mail {
  font-size: clamp(15px, 3.4vw, 19px);
  color: var(--indigo-900);
}

.page-faq .faq-contact-hint {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: var(--slate-500);
}

/* ---------- 侧边索引 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--slate-500);
  padding-bottom: 10px;
  border-bottom: var(--line);
}

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

.page-faq .faq-rail-list li a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 0 9px 10px;
  border-left: 2px solid var(--line-300);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-700);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail-list li a:hover,
.page-faq .faq-rail-list li a:focus-visible {
  color: var(--indigo-600);
  border-left-color: var(--amber-500);
}

.page-faq .faq-rail-no {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--amber-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-trouble-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-stepper-list a {
    padding: 16px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 40px 0 56px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-step {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 20px;
  }

  .page-faq .faq-step-no {
    font-size: 14px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 92px;
    padding-top: 56px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-section {
    padding-top: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-stepper-list a,
  .page-faq .faq-table tbody tr,
  .page-faq .faq-details summary,
  .page-faq .faq-rail-list li a,
  .page-faq .link {
    transition: none;
  }
}
<<<END>>>