.page-faq {
  --faq-line: rgba(166, 255, 234, 0.16);
  --faq-line-strong: rgba(166, 255, 234, 0.32);
  --faq-card: linear-gradient(160deg, rgba(20, 56, 44, 0.9), rgba(7, 11, 9, 0.94));
  --faq-body: rgba(243, 247, 240, 0.8);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(12px, 3vw, 26px) 0 clamp(26px, 5vw, 52px);
  background:
    radial-gradient(120% 70% at 84% -12%, rgba(51, 240, 206, 0.2), transparent 62%),
    radial-gradient(70% 52% at 4% 0%, rgba(240, 181, 74, 0.1), transparent 68%),
    linear-gradient(180deg, var(--green-deep), var(--ink) 78%);
}

.page-faq .faq-hero-inner {
  position: relative;
  padding: clamp(18px, 4vw, 44px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-l);
  background: linear-gradient(155deg, rgba(20, 56, 44, 0.7), rgba(7, 11, 9, 0.92));
  box-shadow: inset 0 1px 0 rgba(166, 255, 234, 0.1), 0 30px 70px -40px rgba(0, 0, 0, 0.95);
  overflow: hidden;
}

.page-faq .faq-hero-inner::before {
  content: "";
  position: absolute;
  left: -20%;
  right: -20%;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(51, 240, 206, 0.5), transparent);
  pointer-events: none;
}

.page-faq .faq-hero-inner::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--amber));
  pointer-events: none;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .breadcrumb-link {
  color: var(--gray);
  text-decoration: none;
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--cyan);
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--faq-line-strong);
}

.page-faq .breadcrumb-item[aria-current],
.page-faq .breadcrumb-link[aria-current="page"] {
  color: var(--cyan);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 4vw, 38px);
}

.page-faq .section-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 60px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .btn--primary {
  background: var(--cyan);
  color: #06231c;
  border: 1px solid var(--cyan);
}

.page-faq .btn--ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--faq-line-strong);
}

.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: var(--cyan-mist);
  border-color: var(--cyan-mist);
  transform: translateY(-2px);
}

.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, var(--green-turf), var(--ink));
}

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

.page-faq .faq-hero-media img {
  aspect-ratio: 14 / 9;
}

/* ---------- 六类快捷入口 ---------- */
.page-faq .faq-quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick a {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 88px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: rgba(13, 36, 29, 0.55);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--cyan);
  background: rgba(20, 56, 44, 0.88);
  transform: translateY(-2px);
}

.page-faq .faq-quick-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-quick-label {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}

.page-faq .faq-quick-hint {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--gray);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(30px, 6vw, 64px);
}

.page-faq .faq-index {
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: rgba(13, 36, 29, 0.5);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--gray);
}

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

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 10px;
  border-radius: var(--radius-s);
  color: var(--paper);
  font-size: 14.5px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: rgba(51, 240, 206, 0.1);
  color: var(--cyan);
}

.page-faq .faq-index-list .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

.page-faq .faq-index-note {
  margin: 14px 0 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--gray);
}

.page-faq .faq-index-cta {
  width: 100%;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(32px, 5vw, 56px);
}

.page-faq .faq-group-head {
  margin-bottom: 16px;
}

.page-faq .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 4px 11px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  background: rgba(51, 240, 206, 0.08);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-faq .tag--cyan {
  border-color: rgba(51, 240, 206, 0.4);
}

.page-faq .tag--amber {
  background: rgba(240, 181, 74, 0.12);
  border-color: rgba(240, 181, 74, 0.4);
  color: var(--amber);
}

.page-faq .faq-group-head h2,
.page-faq .faq-group-head h3 {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-group-head p:not(.tag) {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: var(--faq-card);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.page-faq .qa-item + .qa-item {
  margin-top: 10px;
}

.page-faq .qa-item[open] {
  border-color: var(--faq-line-strong);
}

.page-faq .qa-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

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

.page-faq .qa-summary:hover,
.page-faq .qa-summary:focus-visible {
  color: var(--cyan);
}

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

.page-faq .qa-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .qa-caret {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-left: auto;
  border: 1px solid var(--faq-line-strong);
  border-radius: 50%;
}

.page-faq .qa-caret::before,
.page-faq .qa-caret::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease;
}

.page-faq .qa-caret::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .qa-caret::after {
  width: 1.5px;
  height: 9px;
}

.page-faq .qa-item[open] .qa-caret::after {
  opacity: 0;
}

.page-faq .qa-answer {
  padding: 0 18px 18px;
}

.page-faq .qa-answer p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.8px;
  line-height: 1.85;
  color: var(--faq-body);
}

/* ---------- 设备自检面板 ---------- */
.page-faq .faq-device-extra {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.page-faq .faq-check {
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(20, 56, 44, 0.85), rgba(7, 11, 9, 0.9));
}

.page-faq .faq-check h4 {
  margin: 12px 0 12px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-faq .check-list label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 8px;
  border-radius: var(--radius-s);
  font-size: 14.5px;
  line-height: 1.5;
  color: rgba(243, 247, 240, 0.86);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .check-list label:hover {
  background: rgba(51, 240, 206, 0.07);
}

.page-faq .check-list input {
  flex: none;
  width: 18px;
  height: 18px;
  accent-color: var(--signal);
  cursor: pointer;
}

.page-faq .check-list input:checked + span {
  color: var(--signal);
}

.page-faq .check-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-line);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--gray);
}

.page-faq .faq-device-media img {
  aspect-ratio: 10 / 7;
}

/* ---------- 内联入口 ---------- */
.page-faq .faq-inline-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  margin-top: 16px;
  padding: 0 20px;
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--radius-pill);
  color: var(--cyan);
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-inline-cta:hover,
.page-faq .faq-inline-cta:focus-visible {
  border-color: var(--cyan);
  background: rgba(51, 240, 206, 0.1);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid rgba(240, 181, 74, 0.28);
  border-radius: var(--radius-l);
  background:
    radial-gradient(110% 120% at 92% -10%, rgba(240, 181, 74, 0.16), transparent 60%),
    linear-gradient(160deg, rgba(13, 36, 29, 0.95), rgba(7, 11, 9, 0.98));
}

.page-faq .contact-rows {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .contact-rows li {
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--faq-line);
}

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

.page-faq .contact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-faq .contact-val {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-tip {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-next {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-next-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 92px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: rgba(7, 11, 9, 0.5);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.page-faq .faq-next-card:hover,
.page-faq .faq-next-card:focus-visible {
  border-color: var(--amber);
  background: rgba(20, 56, 44, 0.6);
  transform: translateY(-2px);
}

.page-faq .faq-next-card .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-next-card strong {
  font-size: 15.5px;
  font-weight: 700;
}

.page-faq .faq-next-card span:last-child {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--gray);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .contact-rows li {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }

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

@media (min-width: 760px) {
  .page-faq .faq-device-extra {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-faq .faq-body {
    grid-template-columns: 244px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .qa-summary {
    font-size: 16.5px;
    padding: 17px 22px;
  }

  .page-faq .qa-answer {
    padding: 0 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .btn,
  .page-faq .faq-quick a,
  .page-faq .faq-next-card,
  .page-faq .qa-caret::before,
  .page-faq .qa-caret::after {
    transition: none;
  }

  .page-faq .btn:hover,
  .page-faq .faq-quick a:hover,
  .page-faq .faq-next-card:hover {
    transform: none;
  }
}
<<<END>>>