.page-faq {
  --faq-cut: 16px;
  --faq-toc-w: 236px;
  --faq-sticky-top: 96px;
  color: var(--paper);
  background: var(--deep);
}

.page-faq .container {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--pad);
  box-sizing: border-box;
}

.page-faq a {
  color: inherit;
  text-decoration: none;
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .breadcrumb {
  padding-block: 18px 0;
  font-size: 13px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-faq .breadcrumb a {
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .breadcrumb a:hover {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

.page-faq .breadcrumb span {
  color: var(--paper);
}

.page-faq .eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 12px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(26px, 4vw, 48px);
  background:
    repeating-linear-gradient(114deg, rgba(255, 106, 43, 0.09) 0 1px, transparent 1px 32px),
    radial-gradient(120% 130% at 8% -10%, rgba(43, 36, 72, 0.92), transparent 62%),
    linear-gradient(180deg, var(--deep) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__inner {
  position: relative;
  max-width: 78rem;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 7vw, 62px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.015em;
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--paper);
  background: rgba(18, 69, 74, 0.72);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  border-left: 2px solid var(--orange);
  transition: background 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-hero__jump a:hover {
  background: rgba(255, 106, 43, 0.24);
  transform: translateY(-2px);
}

/* ---------- 三步自查 ---------- */

.page-faq .faq-steps {
  padding-block: clamp(32px, 5vw, 60px);
  background: var(--deep);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-steps h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-steps__intro {
  margin: 0 0 24px;
  max-width: 34em;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--orange);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-step h3 {
  margin: 4px 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  filter: saturate(0.92) contrast(1.03);
}

.page-faq .faq-figure .media__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体：目录 + 问答 ---------- */

.page-faq .faq-body {
  padding-block: clamp(30px, 5vw, 56px) clamp(40px, 6vw, 76px);
  background: linear-gradient(180deg, var(--panel-2) 0%, var(--deep) 42%, var(--deep) 100%);
}

.page-faq .faq-body__inner {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
  border-left: 2px solid var(--line-strong);
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-toc__list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-toc__list a:hover {
  border-left-color: var(--orange);
  background: var(--panel);
  transform: translateX(2px);
}

.page-faq .faq-toc__plate {
  background: var(--panel);
  padding: 16px 16px 18px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-toc__plate .plate__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-toc__plate .plate__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-toc__note {
  margin: 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

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

.page-faq .faq-group {
  margin-bottom: clamp(34px, 5vw, 54px);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-group__head {
  padding-bottom: 14px;
  border-bottom: 2px solid var(--orange);
  margin-bottom: 4px;
}

.page-faq .faq-group__head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 折叠问答 ---------- */

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

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
  transition: color 0.18s ease;
}

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

.page-faq .qa summary::after {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--amber);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: transform 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .qa summary:hover {
  color: var(--amber);
}

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

.page-faq .qa[open] summary::after {
  transform: rotate(45deg);
  color: var(--orange);
  border-color: var(--orange);
}

.page-faq .qa__body {
  padding: 0 0 18px;
  max-width: 42em;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .qa__body a {
  color: var(--amber);
  border-bottom: 1px solid rgba(255, 199, 168, 0.45);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .qa__body a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 设备区块 ---------- */

.page-faq .faq-device__layout {
  display: grid;
  gap: 24px;
  margin-top: 10px;
}

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

.page-faq .faq-device__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .device-note {
  background: var(--indigo);
  padding: 18px 18px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .device-note__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .device-note h3 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .device-note ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .device-note li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .device-note li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--lime);
  transform: rotate(45deg);
}

/* ---------- 联系区块 ---------- */

.page-faq .faq-contact {
  margin-top: 12px;
  display: grid;
  gap: 20px;
  background: var(--wine);
  padding: clamp(20px, 3.5vw, 30px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-contact h3 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

.page-faq .faq-contact__lead {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--amber);
}

.page-faq .faq-contact__channels {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-contact__row {
  margin: 0 0 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  font-size: 14px;
}

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-contact__row .num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-contact__row a.num {
  border-bottom: 1px solid rgba(255, 199, 168, 0.5);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-contact__row a.num:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .copy-btn {
  display: inline-block;
  margin: 0 0 16px;
  padding: 7px 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-faq .copy-btn:hover {
  border-color: var(--orange);
  color: var(--amber);
  background: rgba(255, 106, 43, 0.12);
}

.page-faq .copy-btn[data-done] {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-contact__note {
  margin: 0 0 8px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact__note a {
  color: var(--amber);
  border-bottom: 1px solid rgba(255, 199, 168, 0.45);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-contact__note a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
    gap: 36px;
  }

  .page-faq .faq-device__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    gap: 28px;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 28px;
  }

  .page-faq .faq-contact__channels {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__inner {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 48px;
  }

  .page-faq .qa summary {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__jump a,
  .page-faq .faq-toc__list a,
  .page-faq .qa summary::after,
  .page-faq .copy-btn {
    transition: none;
  }

  .page-faq .faq-hero__jump a:hover,
  .page-faq .faq-toc__list a:hover {
    transform: none;
  }
}
<<<END>>>