.page-faq {
  background: var(--bg);
  color: var(--text);
}

.page-faq .breadcrumb {
  padding-top: 20px;
  padding-bottom: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(43, 232, 210, .07) 0%, rgba(6, 11, 24, 0) 58%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -32%;
  right: -12%;
  width: 62%;
  height: 130%;
  background: radial-gradient(circle at 50% 50%, rgba(255, 122, 47, .13), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding: 34px 0 44px;
}

.page-faq .faq-hero__lead h1 {
  margin: 14px 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.03em;
  color: var(--title);
}

.page-faq .faq-hero__intro {
  margin: 0 0 26px;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  background: var(--panel);
  padding: 18px;
}

.page-faq .faq-quick {
  margin-top: 14px;
  border-top: 1px solid var(--grid);
}

.page-faq .faq-quick__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-quick__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-quick__key {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .faq-quick__val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.01em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  padding: 40px 0 72px;
  row-gap: 40px;
}

.page-faq .faq-main {
  display: grid;
  gap: 52px;
}

.page-faq .faq-section {
  border-top: 1px solid var(--orange);
  padding-top: 24px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-section .sec-head {
  margin-bottom: 20px;
}

/* ---------- 现象归类 ---------- */
.page-faq .faq-map {
  border-top: 1px solid var(--line);
}

.page-faq .faq-map__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 15px 4px;
  border-bottom: 1px solid var(--grid);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-map__row:hover,
.page-faq .faq-map__row:focus-visible {
  background: rgba(43, 232, 210, .06);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-map__symptom {
  font-size: 15px;
  line-height: 1.62;
  color: var(--title);
}

.page-faq .faq-map__verdict {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
}

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

/* ---------- 步骤卡片 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 16px;
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-step:last-child {
  border-bottom: 0;
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--cyan);
  border-right: 1px solid var(--grid);
}

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

.page-faq .faq-step__do {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .faq-step__expect {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-step__expect::before {
  content: "预期 ";
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-soft);
}

/* ---------- 提示条 ---------- */
.page-faq .faq-note {
  margin: 0 0 20px;
  padding: 12px 16px;
  border-left: 2px solid var(--orange);
  background: rgba(255, 122, 47, .08);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

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

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .faq-checklist li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 9px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-panel {
  margin-top: 24px;
}

.page-faq .faq-panel .faq-checklist {
  margin-top: 4px;
}

/* ---------- 提交问题 ---------- */
.page-faq .faq-handoff__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-handoff__card {
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: var(--panel);
  padding: 18px;
}

.page-faq .faq-handoff__card--signal {
  border-top-color: var(--orange);
}

.page-faq .faq-handoff__value {
  margin: 10px 0 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 4vw, 1.32rem);
  letter-spacing: -.01em;
  color: var(--title);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-faq .faq-handoff__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-handoff__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-handoff__foot a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-handoff__foot a:hover,
.page-faq .faq-handoff__foot a:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 章节索引 ---------- */
.page-faq .index-rail {
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--panel);
  padding: 16px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-map__row {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .9fr);
    align-items: center;
    gap: 24px;
    padding: 16px 6px;
  }

  .page-faq .faq-map__verdict {
    text-align: right;
  }

  .page-faq .faq-handoff__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-step {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 18px;
    padding: 17px 20px;
  }

  .page-faq .faq-step__num {
    font-size: 15px;
  }

  .page-faq .faq-step__do {
    font-size: 15.5px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .9fr);
    gap: 60px;
    align-items: start;
    padding: 62px 0 74px;
  }

  .page-faq .faq-hero__panel {
    padding: 22px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    padding: 62px 0 96px;
    column-gap: 52px;
    row-gap: 0;
  }

  .page-faq .index-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 18px;
  }

  .page-faq .faq-main {
    gap: 62px;
  }

  .page-faq .faq-section {
    padding-top: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-map__row {
    transition: none;
  }
}
<<<END>>>