.page-faq {
  --faq-rail-w: 150px;
  --faq-aside-w: 240px;
  --faq-gap: clamp(22px, 3vw, 38px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 4vw, 48px) 0 clamp(38px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(224, 122, 63, 0.16) 0%, rgba(224, 122, 63, 0) 54%),
    linear-gradient(168deg, #E8F1F4 0%, #FCFDFD 56%, #D8E9EF 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-radial-gradient(circle at 88% 10%, rgba(15, 110, 140, 0.1) 0 1px, transparent 1px 26px);
  -webkit-mask-image: radial-gradient(76% 70% at 88% 6%, #000 0%, transparent 74%);
  mask-image: radial-gradient(76% 70% at 88% 6%, #000 0%, transparent 74%);
  opacity: 0.7;
}

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

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-faq .breadcrumb a {
  color: var(--lake-deep);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--sand-deep);
}

.page-faq .hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-size: clamp(1.95rem, 4.6vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18ch;
}

.page-faq .hero-copy .lede {
  max-width: 58ch;
  color: var(--slate);
  font-size: clamp(0.98rem, 1.1vw, 1.06rem);
  line-height: 1.85;
}

.page-faq .hero-card {
  border-radius: var(--radius-m);
  padding: 20px 22px;
  border: 1px solid rgba(15, 110, 140, 0.2);
  align-self: start;
}

.page-faq .hero-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--lake-deep);
}

.page-faq .hero-status-note {
  margin: 0 0 16px;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .hero-nums {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
}

.page-faq .hero-nums div {
  margin: 0;
}

.page-faq .hero-nums dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin-bottom: 2px;
}

.page-faq .hero-nums dd {
  margin: 0;
  font-size: 1.16rem;
  font-weight: 700;
  color: var(--lake);
  letter-spacing: -0.01em;
}

.page-faq .hero-card .btn {
  width: 100%;
  justify-content: center;
  text-align: center;
  font-size: 0.86rem;
}

/* ---------- 四类入口 ---------- */
.page-faq .quick-jump {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-faq .jump-card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "k t"
    "k d";
  gap: 2px 14px;
  padding: 14px 18px;
  border-radius: var(--radius-s);
  background: var(--snow);
  border: 1px solid var(--line);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .jump-card:hover,
.page-faq .jump-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--line-strong);
}

.page-faq .jump-k {
  grid-area: k;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--sand-deep);
  border-right: 1px solid var(--line-strong);
  padding-right: 12px;
}

.page-faq .jump-t {
  grid-area: t;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--ink);
}

.page-faq .jump-d {
  grid-area: d;
  font-size: 0.8rem;
  color: var(--slate);
  line-height: 1.6;
}

/* ---------- 主体骨架 ---------- */
.page-faq .qa-shell {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(34px, 4.5vw, 60px) 0 clamp(50px, 6vw, 88px);
}

.page-faq .qa-rail {
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .qa-rail-list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .qa-rail-link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--snow);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--lake-deep);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa-rail-link:hover,
.page-faq .qa-rail-link:focus-visible {
  border-color: var(--sand);
  color: var(--sand-deep);
}

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

.page-faq .qa-sec + .qa-sec {
  margin-top: clamp(42px, 5.5vw, 76px);
}

.page-faq .sec-head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .sec-head .section-title {
  margin: 0 0 12px;
  color: var(--ink);
}

.page-faq .sec-lede {
  margin: 0;
  max-width: 62ch;
  color: var(--slate);
  line-height: 1.85;
  font-size: 0.96rem;
}

/* ---------- 四步自查 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3vw, 32px);
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, var(--mist) 0%, var(--snow) 70%, var(--sand-mist) 100%);
  box-shadow: var(--shadow-soft);
}

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

.page-faq .media-caption {
  display: block;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--slate);
  border-top: 1px solid var(--line);
  background: var(--snow);
}

.page-faq .gauge {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 2px solid var(--line-strong);
  display: grid;
  gap: 14px;
}

.page-faq .gauge-step {
  position: relative;
  padding: 18px 20px 18px 22px;
  border-radius: var(--radius-m);
  background: var(--snow);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-faq .gauge-step::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 28px;
  width: 16px;
  height: 2px;
  background: var(--sand);
}

.page-faq .gauge-step::after {
  content: "";
  position: absolute;
  left: -29px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--snow);
  border: 2px solid var(--sand);
}

.page-faq .gauge-num {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--sand-deep);
}

.page-faq .gauge-num span {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--sand);
}

.page-faq .gauge-title {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-faq .gauge-do,
.page-faq .gauge-pass {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .gauge-pass {
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.page-faq .gauge-pass strong {
  color: var(--lake-deep);
  font-weight: 600;
}

.page-faq .gauge-do a,
.page-faq .gauge-pass a,
.page-faq .qa-ans a,
.page-faq .dark-card a,
.page-faq .escalate a {
  color: var(--lake);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .gauge-do a:hover,
.page-faq .qa-ans a:hover,
.page-faq .dark-card a:hover {
  color: var(--sand-deep);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--snow);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .qa-item + .qa-item {
  margin-top: 10px;
}

.page-faq .qa-item[open] {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
}

.page-faq .qa-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 15px 48px 15px 20px;
  font-size: 0.96rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ink);
}

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

.page-faq .qa-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.06rem;
  color: var(--sand-deep);
  line-height: 1;
}

.page-faq .qa-item[open] summary::after {
  content: "–";
  color: var(--lake);
}

.page-faq .qa-item[open] summary {
  color: var(--lake-deep);
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-ans {
  margin-left: 20px;
  padding: 14px 20px 16px 16px;
  border-left: 2px solid var(--sand);
}

.page-faq .qa-ans p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .qa-anchor {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-strong);
}

.page-faq .qa-anchor:hover {
  color: var(--sand-deep);
  border-bottom-color: var(--sand);
}

/* ---------- 索引异常深色区 ---------- */
.page-faq .faq-dark {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 3.6vw, 46px);
  border-radius: var(--radius-l);
  background: linear-gradient(164deg, #0A4B60 0%, #0F6E8C 58%, #0A4B60 100%);
  color: #E8F1F4;
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-radial-gradient(circle at 12% 100%, rgba(232, 241, 244, 0.12) 0 1px, transparent 1px 30px);
  opacity: 0.55;
}

.page-faq .faq-dark .sec-head,
.page-faq .faq-dark .dark-grid,
.page-faq .faq-dark .dark-note {
  position: relative;
  z-index: 1;
}

.page-faq .faq-dark .eyebrow {
  color: #F7E7D8;
}

.page-faq .faq-dark .section-title {
  color: #FCFDFD;
}

.page-faq .faq-dark .sec-lede {
  color: rgba(232, 241, 244, 0.86);
}

.page-faq .dark-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .dark-card {
  padding: 16px 18px;
  border-radius: var(--radius-s);
  background: rgba(252, 253, 253, 0.08);
  border: 1px solid rgba(232, 241, 244, 0.22);
}

.page-faq .dark-card h3 {
  margin: 0 0 10px;
  font-size: 0.94rem;
  font-weight: 700;
  color: #FCFDFD;
  letter-spacing: -0.01em;
}

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

.page-faq .dark-list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(232, 241, 244, 0.9);
}

.page-faq .dark-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--sand);
}

.page-faq .dark-card a {
  color: #F7E7D8;
}

.page-faq .dark-note {
  margin: 18px 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(232, 241, 244, 0.78);
}

.page-faq .dark-note a {
  color: #F7E7D8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 五类状态 ---------- */
.page-faq .faq-figure-status {
  background: linear-gradient(150deg, var(--snow) 0%, var(--mist) 100%);
}

.page-faq .status-cards {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .status-chip {
  padding: 14px 16px 14px 18px;
  border-radius: var(--radius-s);
  background: var(--snow);
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-left-style: solid;
}

.page-faq .chip-name {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--ink);
}

.page-faq .chip-desc {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .s-normal {
  border-left-color: var(--ok);
}

.page-faq .s-watch {
  border-left-color: var(--warn);
}

.page-faq .s-degrade {
  border-left-color: var(--sand-deep);
}

.page-faq .s-maint {
  border-left-color: var(--slate);
}

.page-faq .s-recover {
  border-left-color: var(--lake);
}

/* ---------- 反馈 ---------- */
.page-faq .feedback-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-faq .feedback-panel {
  padding: 20px 22px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--snow);
  box-shadow: var(--shadow-soft);
}

.page-faq .feedback-panel.panel-sand {
  background: linear-gradient(158deg, var(--sand-mist) 0%, var(--snow) 78%);
  border-color: rgba(224, 122, 63, 0.28);
}

.page-faq .panel-title {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-faq .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .checklist li {
  position: relative;
  padding-left: 22px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--sand);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-faq .panel-sand .btn {
  margin-top: 16px;
  font-size: 0.86rem;
}

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

.page-faq .escalate li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-faq .esc-n {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--sand-deep);
  padding-top: 2px;
}

.page-faq .escalate h3 {
  margin: 0 0 5px;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .escalate p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .escalate-note {
  margin: 18px 0 0;
  font-size: 0.84rem;
  line-height: 1.8;
  color: var(--slate);
  padding-left: 14px;
  border-left: 2px solid var(--lake);
}

.page-faq .escalate-note a {
  color: var(--lake);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 侧卡 ---------- */
.page-faq .qa-aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .aside-card {
  padding: 18px 18px 20px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--snow) 0%, var(--mist) 100%);
  box-shadow: var(--shadow-soft);
}

.page-faq .aside-quiet {
  background: var(--snow);
  box-shadow: none;
}

.page-faq .aside-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-faq .aside-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 8px;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ok);
  letter-spacing: -0.01em;
}

.page-faq .aside-desc {
  margin: 0 0 12px;
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-faq .aside-link {
  display: block;
  padding: 8px 0;
  font-size: 0.82rem;
  color: var(--lake-deep);
  text-decoration: none;
  border-top: 1px dashed var(--line-strong);
  transition: color 0.2s var(--ease);
}

.page-faq .aside-link:hover,
.page-faq .aside-link:focus-visible {
  color: var(--sand-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .quick-jump {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .status-cards {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .feedback-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .quick-jump {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-faq .status-cards {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .qa-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr) var(--faq-aside-w);
    align-items: start;
  }

  .page-faq .qa-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .qa-rail-list {
    flex-direction: column;
    gap: 0;
  }

  .page-faq .qa-rail-link {
    display: block;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: transparent;
    padding: 8px 0 8px 14px;
    font-size: 0.72rem;
  }

  .page-faq .qa-rail-link:hover,
  .page-faq .qa-rail-link:focus-visible {
    border-left-color: var(--sand);
    color: var(--sand-deep);
  }

  .page-faq .qa-aside {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

@media (max-width: 619px) {
  .page-faq .qa-ans {
    margin-left: 12px;
    padding-right: 14px;
  }

  .page-faq .gauge {
    padding-left: 14px;
  }

  .page-faq .gauge-step {
    padding: 16px 16px 16px 18px;
  }

  .page-faq .escalate li {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .jump-card,
  .page-faq .qa-item,
  .page-faq .aside-link {
    transition: none;
  }

  .page-faq .jump-card:hover {
    transform: none;
  }
}
<<<END>>>