.page-faq {
  --faq-gap: clamp(18px, 3vw, 32px);
  --faq-shadow: 6px 6px 0 var(--shadow);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 56px) 0 clamp(20px, 4vw, 44px);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-faq h1 {
  margin: 0 0 clamp(16px, 3vw, 26px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 76px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .status-rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-top: clamp(24px, 4vw, 40px);
  border: var(--edge) solid var(--line);
  background: var(--line);
  box-shadow: var(--faq-shadow);
}

@media (min-width: 680px) {
  .page-faq .status-rail {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .status-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 15px 18px;
  background: var(--deep);
}

.page-faq .status-dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--neon);
}

.page-faq .status-dot--live {
  animation: faq-breathe 3s ease-in-out infinite;
}

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

.page-faq .status-label {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .status-val {
  font-size: 13px;
  color: var(--neon);
  margin-left: auto;
}

@keyframes faq-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ---------- 章节头 ---------- */

.page-faq .faq-section-head {
  max-width: 42em;
}

.page-faq .faq-section-head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-sub {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 图片框 ---------- */

.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 32px) 0 0;
  border: var(--edge) solid var(--line);
  background: var(--deep);
  box-shadow: var(--faq-shadow);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 2px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 故障排查控制台 ---------- */

.page-faq .faq-console {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(24px, 4vw, 40px);
}

@media (min-width: 960px) {
  .page-faq .faq-console {
    grid-template-columns: minmax(220px, 4fr) 8fr;
    gap: clamp(24px, 4vw, 56px);
  }
}

.page-faq .faq-symptom-nav {
  padding: 18px;
  border: var(--edge) solid var(--line);
  background: var(--deep);
  box-shadow: var(--faq-shadow);
}

@media (min-width: 960px) {
  .page-faq .faq-symptom-nav {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

.page-faq .faq-nav-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-symptom-nav ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-symptom-nav li + li {
  margin-top: 8px;
}

.page-faq .faq-symptom-nav a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 2px solid var(--line);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  text-decoration: none;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease), transform 0.16s var(--ease);
}

.page-faq .faq-symptom-nav a:hover,
.page-faq .faq-symptom-nav a:focus-visible {
  border-color: var(--neon);
  background: var(--panel);
  transform: translate(-2px, -2px);
}

.page-faq .faq-nav-idx {
  flex: none;
  font-size: 12px;
  color: var(--neon);
}

.page-faq .faq-nav-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 步骤卡片 ---------- */

.page-faq .faq-step {
  padding: clamp(18px, 3vw, 28px);
  border: var(--edge) solid var(--line);
  background: var(--panel);
  box-shadow: var(--faq-shadow);
  scroll-margin-top: 112px;
}

.page-faq .faq-step + .faq-step {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-step:target {
  border-color: var(--neon);
}

.page-faq .faq-step-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--neon);
  color: var(--neon);
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-step-head h3 {
  margin: 0 0 6px;
  font-size: clamp(17px, 1.9vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

.page-faq .faq-step-signal {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-actions {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-actions li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-actions li:last-child {
  border-bottom: none;
}

.page-faq .faq-act-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 4px;
  border: 1px solid var(--neon);
  color: var(--neon);
  font-size: 12px;
}

.page-faq .faq-act--key .faq-act-num {
  border-color: var(--alert);
  color: var(--alert);
}

.page-faq .faq-more {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 2px solid var(--line);
}

.page-faq .faq-more summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--neon);
  list-style: none;
}

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

.page-faq .faq-more summary::before {
  content: "+";
  display: inline-block;
  width: 18px;
  text-align: center;
  font-family: var(--font-mono);
}

.page-faq .faq-more[open] summary::before {
  content: "\2212";
}

.page-faq .faq-more p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 换设备重新登录 ---------- */

.page-faq .faq-relogin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

@media (min-width: 900px) {
  .page-faq .faq-relogin-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }
}

.page-faq .faq-flow {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-flow li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 2px solid var(--line);
}

.page-faq .faq-flow li:last-child {
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-flow-num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  background: var(--neon);
  color: var(--night);
  font-size: 13px;
  font-weight: 700;
}

.page-faq .faq-flow strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  color: var(--text);
}

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

.page-faq .faq-lamp-legend {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border: 2px solid var(--line);
}

.page-faq .faq-lamp-legend li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-lamp-legend li + li {
  border-top: 1px solid var(--line);
}

.page-faq .faq-lamp {
  flex: none;
  width: 10px;
  height: 10px;
}

.page-faq .faq-lamp--live { background: var(--neon); }
.page-faq .faq-lamp--sync { background: var(--teal); }
.page-faq .faq-lamp--warn { background: var(--amber); }
.page-faq .faq-lamp--err { background: var(--alert); }

.page-faq .faq-lamp-legend .mono {
  flex: none;
  min-width: 46px;
  font-size: 12px;
  color: var(--text);
}

.page-faq .faq-figure--square {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 480px;
}

@media (min-width: 900px) {
  .page-faq .faq-figure--square {
    margin-top: 0;
    max-width: none;
  }
}

/* ---------- 同步范围 ---------- */

.page-faq .faq-sync-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border: var(--edge) solid var(--line);
  background: var(--line);
  box-shadow: var(--faq-shadow);
}

@media (min-width: 780px) {
  .page-faq .faq-sync-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-faq .faq-sync-list li {
  padding: 22px;
  background: var(--panel);
}

.page-faq .faq-sync-key {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-faq .faq-sync-list h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

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

/* ---------- 收藏与下载 ---------- */

.page-faq .faq-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 780px) {
  .page-faq .faq-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .faq-card {
  padding: 22px;
  border: 2px solid var(--line);
  background: var(--deep);
  box-shadow: 4px 4px 0 var(--shadow);
}

.page-faq .faq-card-tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-faq .faq-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

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

/* ---------- 重试反馈 ---------- */

.page-faq .faq-svg-scroll {
  margin-top: clamp(20px, 3vw, 32px);
  overflow-x: auto;
  border: var(--edge) solid var(--line);
  background: var(--deep);
  box-shadow: var(--faq-shadow);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

.page-faq .faq-retry-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(20px, 3vw, 30px);
  border-top: 2px solid var(--line);
}

@media (min-width: 780px) {
  .page-faq .faq-retry-notes {
    grid-template-columns: repeat(3, 1fr);
    gap: 0 clamp(20px, 3vw, 36px);
  }
}

.page-faq .faq-note-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-note-key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-note-item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 联系我们 ---------- */

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 880px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: 5fr 7fr;
    gap: clamp(28px, 4vw, 56px);
  }
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact-list li:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-contact-val {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-submit-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-faq .faq-submit-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-submit-list li {
  position: relative;
  padding: 10px 0 10px 24px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-submit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--neon);
}

.page-faq .faq-submit-tail {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-submit-tail a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-submit-tail a:hover {
  border-bottom-color: var(--neon);
}

.page-faq .faq-more-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(24px, 4vw, 40px);
  border-top: 2px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .faq-more-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-faq .faq-more-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 2px solid var(--line);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  text-decoration: none;
  transition: background-color 0.16s var(--ease), padding-left 0.16s var(--ease);
}

@media (min-width: 720px) {
  .page-faq .faq-more-link {
    padding: 20px 22px;
    border-right: 2px solid var(--line);
  }

  .page-faq .faq-more-link:last-child {
    border-right: none;
  }
}

.page-faq .faq-more-link:hover,
.page-faq .faq-more-link:focus-visible {
  background: var(--panel);
}

.page-faq .faq-more-key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
}

/* ---------- 无动画偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .status-dot--live {
    animation: none;
  }

  .page-faq .faq-symptom-nav a,
  .page-faq .faq-more-link {
    transition: none;
  }

  .page-faq .faq-symptom-nav a:hover,
  .page-faq .faq-symptom-nav a:focus-visible {
    transform: none;
  }
}