.page-faq {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(48px, 8vw, 112px);
}

.page-faq .breadcrumb {
  margin-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 4vw, 44px) 0 clamp(24px, 4vw, 44px);
  border-bottom: 3px solid var(--ink);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 10vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lede {
  margin: 0 0 24px;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.85;
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero__v {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

/* ---------- 顶部索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: 0;
  z-index: 6;
  margin-bottom: clamp(24px, 4vw, 52px);
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 10px 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid var(--line);
  background: var(--paper-2);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--red);
}

.page-faq .faq-index__link:hover {
  border-color: var(--red);
  background: var(--paper);
}

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

/* ---------- 分区骨架 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 108px;
  margin-bottom: clamp(40px, 7vw, 84px);
}

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

.page-faq .faq-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-section__num {
  margin: 0;
  padding-top: 6px;
  border-top: 2px solid var(--red);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--red);
}

.page-faq .faq-section h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-section__lede {
  margin: 0 0 22px;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.85;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 2px solid var(--ink);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 40px 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--red);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--teal);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-item__a {
  margin: 0 0 18px;
  padding: 2px 4px 2px 16px;
  border-left: 3px solid var(--cyan);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.8;
}

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

.page-faq .faq-item__a a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-item__a a:hover {
  color: var(--red);
}

.page-faq .faq-item__lead {
  padding: 10px 12px;
  border-left: 4px solid var(--red);
  background: var(--red-soft);
  font-weight: 700;
}

.page-faq .faq-steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 15.5px;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.12em;
  padding: 1px 4px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--red);
  background: var(--paper);
}

/* ---------- 配图 ---------- */
.page-faq .figure {
  margin: 0 0 26px;
}

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

/* ---------- 七项自查 ---------- */
.page-faq .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .check {
  display: grid;
  gap: 9px;
  padding: 14px 16px 16px;
  border: 2px solid var(--ink);
  background: var(--paper-2);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .check:hover {
  border-color: var(--red);
  transform: translateY(-2px);
}

.page-faq .check__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .check__num {
  padding: 2px 6px;
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-faq .check__name {
  font-size: 17px;
  font-weight: 700;
}

.page-faq .check__row {
  display: grid;
  grid-template-columns: 4.6em minmax(0, 1fr);
  gap: 10px;
}

.page-faq .check__key {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .check__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 深色设备分区 ---------- */
.page-faq .panel--guide {
  padding: clamp(20px, 4vw, 44px);
  border: 2px solid var(--night);
  background: var(--night);
  background-image: linear-gradient(115deg, rgba(46, 224, 196, 0.12) 0%, rgba(12, 26, 49, 0) 42%, rgba(240, 174, 60, 0.1) 100%);
  color: var(--paper);
}

.page-faq .panel--guide h2 {
  color: var(--paper);
}

.page-faq .panel--guide .faq-section__lede {
  color: rgba(243, 236, 223, 0.84);
}

.page-faq .device-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .panel--guide .faq-list {
  border-top-color: var(--yellow);
}

.page-faq .panel--guide .faq-item {
  border-bottom-color: rgba(243, 236, 223, 0.22);
}

.page-faq .panel--guide .faq-item__q {
  color: var(--paper);
}

.page-faq .panel--guide .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .panel--guide .faq-item__a {
  border-left-color: var(--cyan);
}

.page-faq .panel--guide .faq-item__a p {
  color: rgba(243, 236, 223, 0.86);
}

.page-faq .panel--guide .faq-item__lead {
  background: rgba(46, 224, 196, 0.14);
  border-left-color: var(--cyan);
  color: var(--paper);
}

.page-faq .panel--guide .faq-steps li::before {
  border-color: rgba(243, 236, 223, 0.32);
  color: var(--yellow);
  background: var(--night-2);
}

.page-faq .panel--guide .figure {
  margin-bottom: 0;
}

.page-faq .panel--guide .figure__caption {
  color: rgba(243, 236, 223, 0.7);
}

/* ---------- 联系分区 ---------- */
.page-faq .support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: clamp(18px, 3.6vw, 36px);
  border: 3px solid var(--ink);
  background: var(--paper-2);
}

.page-faq .support__title {
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--red);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.01em;
}

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

.page-faq .support__row {
  display: grid;
  grid-template-columns: 4.2em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .support__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .support__val {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  word-break: break-word;
}

.page-faq .support__note {
  margin: 16px 0 0;
  padding: 10px 12px;
  border-left: 4px solid var(--red);
  background: var(--red-soft);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .support__materials {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  counter-reset: mat;
}

.page-faq .support__materials li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .support__materials li::before {
  counter-increment: mat;
  content: counter(mat, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--teal);
}

.page-faq .support__tail {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .support__tail a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .support__tail a:hover {
  color: var(--red);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .checklist .check:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-section__grid {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 30px;
  }

  .page-faq .faq-section__body {
    max-width: 62rem;
  }

  .page-faq .device-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.78fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 36px;
  }

  .page-faq .faq-item__q {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .check,
  .page-faq .faq-index__link,
  .page-faq .faq-item__q {
    transition: none;
  }

  .page-faq .check:hover {
    transform: none;
  }
}
<<<END>>>