.page-faq {
  --faq-gap: clamp(44px, 6.5vw, 88px);
  --faq-pad: clamp(16px, 3.2vw, 30px);
  background: var(--qb-night);
}

.page-faq .qb-crumbs {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 48px) 0 clamp(34px, 5vw, 56px);
  border-bottom: 1px solid var(--qb-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: -12%;
  top: -70px;
  width: 66%;
  height: 340px;
  background: radial-gradient(circle at 30% 34%, rgba(34, 227, 210, 0.13), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .qb-index {
  display: block;
  margin-bottom: 14px;
}

.page-faq .qb-display {
  margin: 0 0 18px;
  font-size: clamp(36px, 7vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--qb-white);
  max-width: 15em;
}

.page-faq .qb-lead {
  margin: 0;
  max-width: 62ch;
  color: var(--qb-mist);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  padding-top: var(--faq-gap);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
  min-width: 0;
}

/* ---------- 问题块 ---------- */
.page-faq .faq-item {
  scroll-margin-top: calc(var(--qb-header-h) + 34px);
  min-width: 0;
}

.page-faq .faq-item__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--qb-line);
  margin-bottom: 22px;
}

.page-faq .faq-item__no {
  font-family: var(--qb-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--qb-cyan);
  padding-top: 9px;
  line-height: 1;
}

.page-faq .qb-title {
  margin: 0;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--qb-white);
}

.page-faq .qb-title-sm {
  margin: 0 0 8px;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--qb-white);
}

.page-faq .faq-item__lead,
.page-faq .faq-item__tail {
  margin: 0 0 22px;
  color: var(--qb-mist);
  font-size: 15px;
  line-height: 1.8;
  max-width: 68ch;
}

.page-faq .faq-item__tail {
  margin-top: 22px;
  margin-bottom: 0;
  padding-left: 16px;
  border-left: 2px solid var(--qb-line);
}

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

.page-faq .faq-step {
  position: relative;
  padding: 20px 22px 20px 25px;
  background: linear-gradient(180deg, rgba(30, 43, 82, 0.5), rgba(14, 24, 48, 0.78));
  border: 1px solid var(--qb-line);
  overflow: hidden;
  transition: border-color 0.16s var(--qb-speed), transform 0.16s var(--qb-speed);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--qb-cyan);
  opacity: 0.6;
  transition: opacity 0.16s var(--qb-speed);
}

.page-faq .faq-step:hover {
  border-color: rgba(34, 227, 210, 0.4);
  transform: translateX(2px);
}

.page-faq .faq-step:hover::before {
  opacity: 1;
}

.page-faq .faq-step__index {
  display: block;
  font-family: var(--qb-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--qb-cyan);
  margin-bottom: 10px;
}

.page-faq .faq-step p,
.page-faq .faq-check p,
.page-faq .faq-label-row p,
.page-faq .faq-note p,
.page-faq .faq-list li {
  margin: 0;
  color: var(--qb-mist);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure--narrow {
  max-width: 520px;
}

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

/* ---------- 标签色块表 ---------- */
.page-faq .faq-labels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--qb-line);
  border: 1px solid var(--qb-line);
}

.page-faq .faq-label-row {
  background: var(--qb-board);
  padding: 18px 20px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-label-row .qb-label {
  justify-self: start;
}

/* ---------- 订阅提醒条 ---------- */
.page-faq .faq-note {
  margin-top: 16px;
  padding: 20px 22px;
  border: 1px solid var(--qb-line);
  border-left: 3px solid var(--qb-gold);
  background: rgba(14, 24, 48, 0.66);
}

.page-faq .faq-note .qb-index {
  display: block;
  margin-bottom: 8px;
}

/* ---------- 数据块 ---------- */
.page-faq .faq-metrics {
  display: grid;
  gap: 1px;
  background: var(--qb-line);
  border: 1px solid var(--qb-line);
  margin: 4px 0 0;
}

.page-faq .faq-metric {
  background: var(--qb-board);
  padding: 24px 20px;
  min-width: 0;
}

.page-faq .faq-metric__value {
  font-family: var(--qb-mono);
  font-size: clamp(32px, 5.4vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--qb-orange);
}

.page-faq .faq-metric__unit {
  font-family: var(--qb-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--qb-mist);
  margin-left: 8px;
}

.page-faq .faq-metric__label {
  margin: 12px 0 0;
  color: var(--qb-mist);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 自查清单 ---------- */
.page-faq .faq-checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--qb-line);
}

.page-faq .faq-check:last-child {
  border-bottom: 1px solid var(--qb-line);
}

.page-faq .faq-check__no {
  font-family: var(--qb-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--qb-orange);
  padding-top: 4px;
  line-height: 1;
}

/* ---------- 提问清单 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 20px;
  max-width: 66ch;
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 3px;
  background: var(--qb-cyan);
}

.page-faq .faq-contact {
  margin: 0 0 24px;
  color: var(--qb-white);
  font-size: 15px;
  line-height: 1.8;
  max-width: 66ch;
}

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

.page-faq .faq-actions .qb-btn {
  text-decoration: none;
}

/* ---------- 右侧目录 ---------- */
.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-rail .qb-index {
  display: block;
  margin-bottom: 14px;
}

.page-faq .faq-rail .qb-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--qb-line);
}

.page-faq .faq-rail .qb-toc__link {
  display: block;
  margin-left: -1px;
  padding: 10px 14px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--qb-mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.16s var(--qb-speed), border-color 0.16s var(--qb-speed), background-color 0.16s var(--qb-speed);
}

.page-faq .faq-rail .qb-toc__link:hover {
  color: var(--qb-white);
  background: rgba(30, 43, 82, 0.5);
}

.page-faq .faq-rail .qb-toc__link[aria-current] {
  color: var(--qb-cyan);
  border-left-color: var(--qb-cyan);
}

.page-faq .faq-rail .qb-toc__index {
  font-family: var(--qb-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(168, 182, 217, 0.55);
  margin-right: 8px;
}

.page-faq .faq-rail .qb-toc__link[aria-current] .qb-toc__index {
  color: var(--qb-cyan);
}

.page-faq .faq-rail__foot {
  margin: 20px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--qb-line);
  color: var(--qb-mist);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-label-row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: center;
    gap: 22px;
  }

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

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--qb-header-h) + 28px);
    align-self: start;
  }
}

@media (max-width: 400px) {
  .page-faq .faq-step {
    padding: 18px 16px 18px 20px;
  }

  .page-faq .faq-check {
    gap: 12px;
  }

  .page-faq .faq-item__head {
    gap: 12px;
  }
}
<<<END>>>