.page-faq {
  --faq-line: #24455F;
  --faq-gap: 18px;
  --faq-wash: rgba(56, 242, 196, 0.09);
  --faq-orange-wash: rgba(255, 106, 61, 0.12);
  padding-bottom: 76px;
}

.page-faq .breadcrumb {
  margin: 12px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  margin-top: 16px;
}

.page-faq .faq-hero__main {
  position: relative;
  overflow: hidden;
  padding: 26px 20px 28px;
  border: 2px solid var(--faq-line);
  background:
    linear-gradient(148deg, rgba(56, 242, 196, 0.11), rgba(56, 242, 196, 0) 46%),
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__main::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 96px;
  height: 96px;
  background: var(--mint);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  opacity: 0.9;
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  max-width: 16em;
  margin: 12px 0 16px;
  font-size: clamp(29px, 6.2vw, 54px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .status-card {
  padding: 18px 16px 16px;
  border: 2px solid var(--faq-line);
  border-left: 6px solid var(--orange);
  background: var(--ink-800);
}

.page-faq .status-card__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
  text-transform: uppercase;
}

.page-faq .status-card__list {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .status-card__list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .status-card__dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 4px;
  transform: rotate(45deg);
  background: var(--mint);
}

.page-faq .status-card__dot--amber {
  background: var(--amber);
}

.page-faq .status-card__dot--orange {
  background: var(--orange);
}

.page-faq .status-card__note {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .quick-jump {
  display: grid;
  gap: 2px;
  padding: 14px 16px 16px;
  border: 2px solid var(--faq-line);
  background: var(--ink-900);
}

.page-faq .quick-jump__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .quick-jump a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 69, 95, 0.6);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .quick-jump a:last-child {
  border-bottom: 0;
}

.page-faq .quick-jump a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mint);
}

.page-faq .quick-jump a:hover,
.page-faq .quick-jump a:focus-visible {
  color: var(--mint-soft);
  padding-left: 4px;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  margin-top: 52px;
}

.page-faq .section-head__note {
  max-width: 62ch;
}

/* ---------- 设备变更 ---------- */
.page-faq .steps {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-faq .step {
  position: relative;
  padding: 20px 18px 18px;
  border: 2px solid var(--faq-line);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
}

.page-faq .step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-faq .step h3 {
  margin: 10px 0 8px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .step p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .step .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-faq .device-rules {
  margin-top: 18px;
}

.page-faq .device-rules h3 {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-faq .device-rules ul {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-900);
}

.page-faq .device-rules__more {
  margin: 14px 0 0;
}

.page-faq .device-rules .link-more {
  color: var(--ink-900);
  font-weight: 700;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--faq-line);
  background: var(--ink-800);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问题索引 ---------- */
.page-faq .quiz-layout {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-faq .quiz-rail {
  padding: 16px;
  border: 2px solid var(--faq-line);
  background: var(--ink-900);
}

.page-faq .quiz-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .filter-btn {
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.2;
  padding: 9px 12px;
  color: var(--paper);
  background: var(--ink-800);
  border: 2px solid var(--faq-line);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .filter-btn:hover {
  border-color: var(--mint-soft);
}

.page-faq .filter-btn[aria-pressed="true"] {
  color: var(--mint);
  border-color: var(--mint);
  background: var(--faq-wash);
}

.page-faq .quiz-rail__hint {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .quiz-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .qa {
  border: 2px solid var(--faq-line);
  border-left-width: 6px;
  border-left-color: var(--ink-600);
  background: var(--ink-800);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--mint);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 15px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa[open] summary::after {
  content: "–";
}

.page-faq .qa__tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  padding: 3px 6px;
  color: var(--ink-900);
  background: var(--mint-soft);
}

.page-faq .qa__body {
  padding: 0 15px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  border-top: 1px dashed var(--faq-line);
  margin-top: 2px;
  padding-top: 12px;
}

.page-faq .qa__body p {
  margin: 0 0 10px;
}

.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 回看与数据面板 ---------- */
.page-faq .playback-grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.page-faq .playback-notes {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-point {
  padding: 14px 16px 16px;
  border: 2px solid var(--faq-line);
  border-left: 6px solid var(--orange);
  background: var(--ink-800);
}

.page-faq .faq-point h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-point p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .playback-notes__more {
  margin: 4px 0 0;
}

.page-faq .faq-figure--panel {
  margin: 0;
}

/* ---------- 下载安装 ---------- */
.page-faq .install-grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .install-card {
  padding: 18px 16px 18px;
  border: 2px solid var(--faq-line);
  background: var(--ink-800);
}

.page-faq .install-card__os {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .install-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .install-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .install-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 20px 0 0;
  padding: 14px 16px;
  border: 2px dashed var(--faq-line);
}

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

/* ---------- 工单 ---------- */
.page-faq .ticket-grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .ticket-panel {
  background: var(--ink-800);
}

.page-faq .ticket-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: ticket;
}

.page-faq .ticket-list li {
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  counter-increment: ticket;
}

.page-faq .ticket-list li::before {
  content: counter(ticket, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--mint);
}

.page-faq .ticket-list__k {
  display: block;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-faq .ticket-contact__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-faq .ticket-contact__mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4vw, 21px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  word-break: break-all;
}

.page-faq .ticket-contact p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-900);
}

.page-faq .ticket-contact__note {
  padding-top: 10px;
  border-top: 1px dashed rgba(6, 17, 31, 0.32);
  font-size: 13px !important;
}

/* ---------- 人工支持 ---------- */
.page-faq .resolve {
  display: grid;
  gap: 18px;
  padding: 24px 20px 26px;
  border: 2px solid var(--mint);
  background:
    linear-gradient(135deg, rgba(56, 242, 196, 0.14), rgba(56, 242, 196, 0) 60%),
    var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-faq .resolve h2 {
  margin: 10px 0 10px;
  font-size: clamp(23px, 4.4vw, 36px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-faq .resolve__text p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .resolve__actions {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .resolve__phone {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .resolve__phone .data-num {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mint);
}

.page-faq .resolve__hours {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero__main {
    padding: 34px 30px 36px;
  }

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

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-hero__main {
    padding: 40px 36px 40px;
  }

  .page-faq .faq-hero__main::after {
    width: 132px;
    height: 132px;
  }

  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 48px;
    right: -20px;
    width: 20px;
    height: 2px;
    background: var(--mint);
  }

  .page-faq .quiz-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 22px;
  }

  .page-faq .quiz-rail {
    position: sticky;
    top: calc(var(--topbar-h) + 16px);
  }

  .page-faq .filter-bar {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .filter-btn {
    width: 100%;
    text-align: left;
  }

  .page-faq .playback-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-faq .resolve {
    grid-template-columns: minmax(0, 1.5fr) minmax(220px, 1fr);
    align-items: center;
    padding: 32px 30px;
  }
}

@media (min-width: 1080px) {
  .page-faq .install-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
</<PAGE_CSS>>>