.page-faq {
  --faq-paper-edge: rgba(11, 7, 20, .14);
  padding-bottom: 8px;
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  margin: 20px 0 28px;
  letter-spacing: .02em;
}
.page-faq .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
}
.page-faq .breadcrumbs a:hover {
  text-decoration: underline;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: 8px;
}
.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  align-items: end;
}
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, .62fr);
    gap: 48px;
  }
}
.page-faq .faq-hero__main h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--text);
  margin: 14px 0 20px;
  font-weight: 800;
}
.page-faq .faq-lead {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 60ch;
  margin: 0;
}
.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 首屏侧卡 */
.page-faq .faq-hero__note {
  padding: 22px;
  border-radius: var(--radius-lg);
}
.page-faq .faq-hero__note-label {
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #6b5a3c;
  margin: 0 0 4px;
}
.page-faq .faq-hero__note-value {
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 40px);
  font-weight: 700;
  color: #1a1030;
  margin: 0 0 12px;
  letter-spacing: -.02em;
  line-height: 1.05;
}
.page-faq .faq-hero__note-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: #3a2d50;
  margin: 0 0 14px;
}
.page-faq .faq-hero__note-link {
  font-size: 13.5px;
  color: #4a2fd0;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px dashed rgba(74, 47, 208, .4);
  padding-bottom: 1px;
}
.page-faq .faq-hero__note-link:hover {
  border-bottom-style: solid;
}

/* 三步 */
.page-faq .faq-steps {
  padding: 56px 0 40px;
}
.page-faq .faq-steps .section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--text);
  margin: 6px 0 0;
  font-weight: 700;
}
.page-faq .steps-list {
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
@media (min-width: 768px) {
  .page-faq .steps-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}
.page-faq .steps-item {
  position: relative;
  padding: 24px 22px 22px;
  background: linear-gradient(160deg, rgba(45, 226, 230, .10), rgba(122, 77, 255, .05));
  border: 1px solid rgba(45, 226, 230, .24);
  border-radius: var(--radius-lg);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.page-faq .steps-item:hover {
  border-color: rgba(45, 226, 230, .6);
  transform: translateY(-2px);
}
@media (min-width: 768px) {
  .page-faq .steps-item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 48px;
    right: -18px;
    width: 14px;
    height: 2px;
    background: var(--violet);
    z-index: 1;
  }
}
.page-faq .steps-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: .04em;
}
.page-faq .steps-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
  line-height: 1.3;
}
.page-faq .steps-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

/* 首屏配图 */
.page-faq .faq-media {
  padding: 12px 0 40px;
}
.page-faq .faq-media .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-neon);
  background: var(--panel);
}
.page-faq .faq-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 问答主体 */
.page-faq .faq-body {
  padding: 48px 0 32px;
}
.page-faq .faq-body__grid {
  display: grid;
  gap: 32px;
}
@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(230px, 270px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* 问题索引 */
.page-faq .faq-index {
  padding: 22px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }
}
.page-faq .faq-index__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 6px 0 14px;
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-faq .faq-index__list li {
  margin: 0;
}
.page-faq .faq-index__list a {
  display: flex;
  gap: 8px;
  padding: 8px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
  text-decoration: none;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--text);
  background: var(--machine);
  border-left-color: var(--cyan);
  outline: none;
}
.page-faq .faq-index__list .mono {
  flex-shrink: 0;
  color: var(--cyan);
  font-size: 11.5px;
  letter-spacing: .04em;
  padding-top: 1px;
}
@media (max-width: 959px) {
  .page-faq .faq-index {
    padding: 16px 0 8px;
    background: transparent;
    border: none;
    border-radius: 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .page-faq .faq-index__title {
    margin-bottom: 12px;
  }
  .page-faq .faq-index__list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
  }
  .page-faq .faq-index__list a {
    padding: 6px 10px;
    background: var(--machine);
    border-radius: 999px;
    border-left: none;
    font-size: 12px;
  }
  .page-faq .faq-index__list a:hover {
    border-left: none;
    background: var(--violet);
    color: var(--text);
  }
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: 44px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__head {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-group__head .eyebrow {
  margin: 0 0 6px;
}
.page-faq .faq-group__head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin: 0 0 8px;
}
.page-faq .faq-group__lead {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 58ch;
}

/* 安装组配图 */
.page-faq .faq-figure {
  margin: 20px 0 28px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--machine);
  border: 1px solid var(--line-soft);
}
.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding: 10px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* 折叠问答 */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 10px 18px 6px;
  transition: background .2s var(--ease);
  position: relative;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: "";
}
.page-faq .faq-item summary:hover {
  background: rgba(122, 77, 255, .07);
}
.page-faq .faq-item[open] summary {
  background: rgba(45, 226, 230, .05);
}
.page-faq .faq-item__no {
  flex-shrink: 0;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--cyan);
  margin-top: 4px;
}
.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text);
  font-weight: 500;
}
.page-faq .faq-item__chevron {
  flex-shrink: 0;
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  margin-top: 9px;
  transition: transform .3s var(--ease), border-color .2s var(--ease);
}
.page-faq .faq-item[open] .faq-item__chevron {
  transform: rotate(135deg);
  border-color: var(--cyan);
}
.page-faq .faq-item__a {
  padding: 2px 16px 22px 42px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}
.page-faq .faq-item__a p {
  margin: 0 0 10px;
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(45, 226, 230, .5);
}
.page-faq .faq-item__a a:hover {
  border-bottom-style: solid;
}
@media (max-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: 6px;
    padding-right: 6px;
  }
  .page-faq .faq-item__q {
    font-size: 14.5px;
  }
}

/* 联系区块 */
.page-faq .faq-contact {
  padding: 56px 0 48px;
  background: linear-gradient(180deg, transparent 0%, rgba(122, 77, 255, .06) 100%);
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-contact__grid {
  display: grid;
  gap: 32px;
}
@media (min-width: 900px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 48px;
    align-items: start;
  }
}
.page-faq .faq-contact__main h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin: 8px 0 12px;
}
.page-faq .faq-contact__main p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 55ch;
  margin: 0;
}
.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  position: relative;
}
.page-faq .faq-contact__actions .copy-toast {
  position: absolute;
  bottom: -28px;
  left: 0;
  opacity: 0;
  font-size: 12px;
  color: var(--cyan);
  pointer-events: none;
  transition: opacity .2s var(--ease);
}
.page-faq .faq-contact__actions .copy-toast.is-visible {
  opacity: 1;
}
.page-faq .faq-contact__card {
  padding: 24px;
  border-radius: var(--radius-lg);
}
.page-faq .faq-contact__card .contact-key {
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #6b5a3c;
  margin: 0 0 4px;
}
.page-faq .faq-contact__card .contact-value {
  font-size: 15px;
  color: #1a1030;
  word-break: break-all;
  margin: 0 0 14px;
  font-weight: 500;
}
.page-faq .faq-contact__card .contact-note {
  font-size: 12.5px;
  line-height: 1.7;
  color: #3a2d50;
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-paper-edge);
}
.page-faq .faq-contact__card .contact-note a {
  color: #4a2fd0;
  text-decoration: none;
  border-bottom: 1px dashed rgba(74, 47, 208, .45);
}
.page-faq .faq-contact__card .contact-note a:hover {
  border-bottom-style: solid;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .steps-item,
  .page-faq .faq-item__chevron,
  .page-faq .faq-index__list a,
  .page-faq .faq-contact__actions .copy-toast {
    transition: none;
  }
  .page-faq .steps-item:hover {
    transform: none;
  }
}
<<<END>>>