.page-faq {
  background: var(--c-ice);
  color: var(--c-white);
  font-family: var(--font-body);
  line-height: 1.75;
}

.page-faq a {
  color: var(--c-line);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq a.btn,
.page-faq .faq-branch {
  text-decoration: none;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-faq .crumbs__item:not(:last-child)::after {
  content: "/";
  margin-left: 6px;
  color: var(--c-grid);
}

.page-faq .crumbs__link {
  color: var(--c-muted);
  text-decoration: none;
}

.page-faq .crumbs__link:hover {
  color: var(--c-line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--hair);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 27, 46, 0.5) 0%, rgba(6, 27, 46, 0.92) 68%, var(--c-ice) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-bottom: 0;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
  padding: 26px 0 34px;
}

.page-faq .faq-hero__kicker {
  color: var(--c-accent);
  letter-spacing: 0.14em;
  margin: 0 0 12px;
}

.page-faq h1 {
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.08;
  color: var(--c-white);
}

.page-faq .hl {
  color: var(--c-accent);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16px;
  color: var(--c-muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 故障树 ---------- */
.page-faq .faultmap {
  margin: 0;
  padding: 18px 16px 14px;
  background: rgba(13, 53, 80, 0.72);
  border: var(--hair);
  border-top: 3px solid var(--c-accent);
}

.page-faq .faultmap__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faultmap__caption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: var(--hair);
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

/* ---------- 分支入口 ---------- */
.page-faq .faq-branches {
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
  border-bottom: none;
}

.page-faq .faq-branch {
  display: grid;
  gap: 5px;
  padding: 16px 18px 18px;
  background: var(--c-ice);
  border-left: 3px solid var(--c-grid);
  color: var(--c-white);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-branch:hover,
.page-faq .faq-branch:focus-visible {
  background: var(--c-panel);
  border-left-color: var(--c-line);
}

.page-faq .faq-branch--warn {
  border-left-color: var(--c-yellow);
}

.page-faq .faq-branch--stop {
  border-left-color: var(--c-red);
}

.page-faq .faq-branch--hot {
  border-left-color: var(--c-accent);
}

.page-faq .faq-branch__label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-faq .faq-branch__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}

.page-faq .faq-branch__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding: 52px 0;
  border-top: var(--hair);
}

.page-faq .section-head {
  margin-bottom: 26px;
}

.page-faq .faq-intro {
  margin: 0 0 30px;
  font-size: 16px;
  color: var(--c-muted);
}

.page-faq .faq-two-col {
  display: grid;
  gap: 32px;
}

/* ---------- 编号步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step {
  position: relative;
  padding: 0 0 26px 54px;
}

.page-faq .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 40px;
  bottom: 0;
  width: 1px;
  background: var(--c-grid);
}

.page-faq .step__num {
  position: absolute;
  left: 0;
  top: -6px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-size: 15px;
  color: var(--c-line);
  background: var(--c-ice);
  border: 1px solid var(--c-grid);
}

.page-faq .step--final .step__num {
  color: var(--c-accent);
  border-color: var(--c-accent);
}

.page-faq .step__title {
  font-size: 17px;
  line-height: 1.4;
  padding-top: 2px;
}

.page-faq .step__body {
  margin: 8px 0 0;
  font-size: 15px;
  color: var(--c-muted);
}

/* ---------- 侧栏卡片 ---------- */
.page-faq .faq-two-col__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .side-card {
  padding: 18px 20px;
  background: var(--c-panel);
  border: var(--hair);
  border-left: 3px solid var(--c-line);
}

.page-faq .side-card--yellow {
  border-left-color: var(--c-yellow);
}

.page-faq .side-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}

.page-faq .side-card__body {
  margin: 0;
  font-size: 14.5px;
  color: var(--c-muted);
}

.page-faq .side-card__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ---------- 客户端兼容 ---------- */
.page-faq .faq-intro--wide {
  max-width: 74ch;
}

.page-faq .client-grid {
  display: grid;
  gap: 28px;
}

.page-faq .matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-grid);
}

.page-faq .matrix {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .matrix__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  background: var(--c-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}

.page-faq .matrix th,
.page-faq .matrix td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--hair);
}

.page-faq .matrix thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-line);
  background: var(--c-panel);
}

.page-faq .matrix tbody th {
  font-weight: 600;
  color: var(--c-white);
}

.page-faq .matrix tbody td {
  color: var(--c-muted);
}

.page-faq .matrix tbody tr:last-child th,
.page-faq .matrix tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .st {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.page-faq .st::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-line);
}

.page-faq .st--up::before {
  background: var(--c-yellow);
}

.page-faq .st--no::before {
  background: var(--c-red);
}

.page-faq .client-grid__note {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--c-muted);
}

.page-faq .client-grid__media .img-frame {
  margin: 0 0 16px;
}

/* ---------- 比分 ---------- */
.page-faq .score-grid {
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
}

.page-faq .score-item {
  padding: 20px 20px 22px;
  background: var(--c-panel);
}

.page-faq .score-item__num {
  margin: 0;
  font-size: 40px;
  line-height: 1;
  color: var(--c-accent);
}

.page-faq .score-item__num small {
  font-size: 15px;
  margin-left: 2px;
  color: var(--c-muted);
}

.page-faq .score-item__title {
  margin: 12px 0 8px;
  font-size: 17px;
}

.page-faq .score-item__body {
  margin: 0;
  font-size: 14.5px;
  color: var(--c-muted);
}

.page-faq .score-footer {
  margin: 26px 0 0;
}

/* ---------- 优惠问答 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--c-grid);
}

.page-faq .qa details {
  border: 1px solid var(--c-grid);
  border-top: none;
  border-left: 3px solid var(--c-grid);
  background: rgba(13, 53, 80, 0.55);
  transition: border-left-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa details[open] {
  border-left-color: var(--c-accent);
  background: var(--c-panel);
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-white);
}

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

.page-faq .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-line);
}

.page-faq .qa details[open] summary::after {
  content: "−";
  color: var(--c-accent);
}

.page-faq .qa__body {
  padding: 0 18px 18px;
  font-size: 15px;
  color: var(--c-muted);
}

/* ---------- 工单 ---------- */
.page-faq .ticket-grid {
  display: grid;
  gap: 20px;
}

.page-faq .ticket {
  padding: 22px 20px;
  background: var(--c-panel);
  border: var(--hair);
  border-top: 3px solid var(--c-accent);
}

.page-faq .ticket--contact {
  border-top-color: var(--c-line);
  background: var(--c-deep);
}

.page-faq .ticket__title {
  font-size: 18px;
  margin-bottom: 16px;
}

.page-faq .ticket__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
  font-size: 14.5px;
  color: var(--c-muted);
}

.page-faq .ticket__list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .ticket__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
}

.page-faq .ticket__contact {
  margin: 0;
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 8px 16px;
  font-size: 14.5px;
}

.page-faq .ticket__contact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
  padding-top: 3px;
}

.page-faq .ticket__contact dd {
  margin: 0;
  color: var(--c-white);
  word-break: break-word;
}

.page-faq .ticket__mail {
  color: var(--c-line);
  font-family: var(--font-mono);
  font-size: 13.5px;
}

.page-faq .ticket__note {
  margin: 18px 0 16px;
  padding-top: 14px;
  border-top: var(--hair);
  font-size: 13.5px;
  color: var(--c-muted);
}

/* ---------- 延伸入口 ---------- */
.page-faq .next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-branches {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 48px;
    padding: 40px 0 44px;
  }

  .page-faq .faq-branches {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-section {
    padding: 64px 0;
  }

  .page-faq .faq-two-col {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 44px;
  }

  .page-faq .client-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: 36px;
    align-items: start;
  }

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

  .page-faq .ticket-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__kicker {
    font-size: 13px;
  }

  .page-faq .faq-hero__lead {
    font-size: 17px;
  }
}

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