.page-faq {
  --faq-rail: 258px;
  --faq-line: rgba(34, 224, 214, 0.18);
  --faq-dash: rgba(122, 140, 160, 0.3);
  display: block;
  background: var(--c-bg);
  color: var(--c-white);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(34, 224, 214, 0.16), transparent 58%),
    linear-gradient(168deg, var(--c-bg) 0%, var(--c-panel) 58%, var(--c-bg) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -14%;
  bottom: -46%;
  width: 64%;
  height: 76%;
  background: linear-gradient(115deg, rgba(255, 78, 31, 0.2), rgba(255, 78, 31, 0));
  transform: skewX(-18deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-block: 34px 48px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(29px, 7.4vw, 52px);
  line-height: 1.08;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-hero .lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(242, 247, 250, 0.82);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13.5px;
  color: var(--c-gray);
}

.page-faq .faq-hero__stats .mono {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-cyan);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__figure {
  margin: 0;
  overflow: hidden;
  clip-path: var(--cut-tr);
  background: var(--c-panel);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 双轨主体 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-block: 32px 72px;
}

.page-faq .faq-toc {
  align-self: start;
  scroll-margin-top: calc(var(--shell-top) + 20px);
  border-top: 2px solid var(--c-cyan-dim);
  padding-top: 14px;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--c-gray);
}

.page-faq .faq-toc__list {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__item {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid var(--faq-dash);
  font-size: 13.5px;
  line-height: 1.4;
  color: rgba(242, 247, 250, 0.72);
  text-decoration: none;
  white-space: nowrap;
  background: transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-toc__link .mono {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-cyan-dim);
}

.page-faq .faq-toc__link.is-active,
.page-faq .faq-toc__link[aria-current="true"] {
  color: var(--c-white);
  border-color: rgba(255, 78, 31, 0.6);
  background: rgba(255, 78, 31, 0.12);
}

.page-faq .faq-toc__link.is-active .mono,
.page-faq .faq-toc__link[aria-current="true"] .mono {
  color: var(--c-orange);
}

.page-faq .faq-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- 章节 ---------- */

.page-faq .faq-block {
  scroll-margin-top: calc(var(--shell-top) + 20px);
  padding: 30px 0 26px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-faq .faq-block__idx {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-orange);
  padding-top: 3px;
}

.page-faq .faq-block h2 {
  margin: 0;
  font-size: clamp(20px, 4.8vw, 27px);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--c-white);
}

.page-faq .faq-block__lead {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(242, 247, 250, 0.78);
}

/* ---------- 问答条目 ---------- */

.page-faq .qa {
  padding: 15px 0;
  border-bottom: 1px dashed var(--faq-dash);
}

.page-faq .qa:last-of-type {
  border-bottom: 0;
}

.page-faq .qa__q {
  display: flex;
  gap: 10px;
  margin: 0 0 7px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-white);
}

.page-faq .qa__q::before {
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 2px;
  margin-top: 0.62em;
  background: var(--c-cyan);
  transform: skewX(-26deg);
}

.page-faq .qa__a {
  margin: 0;
  padding-left: 21px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(242, 247, 250, 0.76);
}

.page-faq .qa__a a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.42);
}

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

/* ---------- 步骤 ---------- */

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

.page-faq .step {
  position: relative;
  padding: 18px 20px 18px 62px;
  background: linear-gradient(90deg, rgba(34, 224, 214, 0.1), rgba(34, 224, 214, 0) 44%), var(--c-panel);
  clip-path: var(--cut-tr-sm);
}

.page-faq .step__no {
  position: absolute;
  left: 20px;
  top: 19px;
  width: 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan-dim);
  padding-bottom: 4px;
  text-align: center;
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-white);
}

.page-faq .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(242, 247, 250, 0.74);
}

/* ---------- 排查清单 ---------- */

.page-faq .checklist {
  display: grid;
  gap: 0;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .checklist li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(122, 140, 160, 0.2);
}

.page-faq .checklist__no {
  flex: 0 0 auto;
  width: 26px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--c-cyan-dim);
}

.page-faq .checklist__text {
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 247, 250, 0.78);
}

/* ---------- 提示条 ---------- */

.page-faq .hint {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 13px 16px;
  border: 1px solid rgba(34, 224, 214, 0.32);
  border-left: 3px solid var(--c-cyan);
  background: rgba(34, 224, 214, 0.06);
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 247, 250, 0.86);
}

.page-faq .hint__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  padding-top: 2px;
}

/* ---------- 对比表 ---------- */

.page-faq .cmp-wrap {
  margin: 20px 0 0;
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  scrollbar-width: thin;
}

.page-faq .cmp {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .cmp caption {
  caption-side: top;
  padding: 11px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--c-gray);
}

.page-faq .cmp th,
.page-faq .cmp td {
  padding: 11px 14px;
  text-align: left;
  border-top: 1px solid rgba(122, 140, 160, 0.24);
  color: rgba(242, 247, 250, 0.8);
}

.page-faq .cmp thead th {
  border-top: 1px solid var(--faq-line);
  color: var(--c-cyan);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-faq .cmp tbody th {
  color: var(--c-gray);
  font-weight: 500;
}

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

/* ---------- 家庭场景配图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 22px;
  overflow: hidden;
  clip-path: var(--cut-tr);
  background: var(--c-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

.page-faq .faq-figure figcaption {
  padding: 12px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-gray);
}

/* ---------- 联系 ---------- */

.page-faq .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 4px 0 0;
}

.page-faq .contact-card {
  padding: 18px 20px;
  background: var(--c-panel);
  clip-path: var(--cut-tr);
}

.page-faq .contact-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-gray);
}

.page-faq .contact-card__value {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-white);
  word-break: break-all;
}

.page-faq .contact-note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 247, 250, 0.76);
}

.page-faq .contact-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, 0.42);
}

.page-faq .contact-note a:hover {
  color: var(--c-white);
  border-bottom-color: var(--c-orange);
}

/* ---------- 收束导航 ---------- */

.page-faq .faq-outro {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--faq-line);
}

/* ---------- 返回索引 ---------- */

.page-faq .faq-return {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-gray);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-return::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  transform: skewX(-24deg);
}

.page-faq .faq-return:hover {
  color: var(--c-cyan);
  border-bottom-color: rgba(34, 224, 214, 0.5);
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .step {
    padding-right: 30px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
    gap: 52px;
    padding-block: 52px 68px;
  }

  .page-faq .faq-hero__figure {
    align-self: stretch;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    padding-block: 46px 104px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--shell-top) + 26px);
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-toc__item {
    flex: 0 0 auto;
  }

  .page-faq .faq-toc__link {
    border: 0;
    border-left: 1px solid var(--faq-dash);
    padding: 9px 10px 9px 15px;
    white-space: normal;
    background: transparent;
    font-size: 13.5px;
  }

  .page-faq .faq-toc__link::after {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background: var(--c-orange);
    transform: skewX(-18deg) scaleY(0);
    transform-origin: top center;
    transition: transform 0.24s var(--ease);
  }

  .page-faq .faq-toc__link:hover {
    color: var(--c-white);
  }

  .page-faq .faq-toc__link.is-active,
  .page-faq .faq-toc__link[aria-current="true"] {
    color: var(--c-white);
    border-left-color: rgba(255, 78, 31, 0.55);
    background: transparent;
  }

  .page-faq .faq-toc__link.is-active::after,
  .page-faq .faq-toc__link[aria-current="true"]::after {
    transform: skewX(-18deg) scaleY(1);
  }

  .page-faq .faq-block {
    padding: 38px 0 32px;
  }

  .page-faq .faq-block h2 {
    font-size: 26px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-layout {
    gap: 68px;
  }

  .page-faq .faq-hero h1 {
    max-width: 15ch;
  }
}
<<<END>>>