.page-faq {
  --faq-rule: 1px solid var(--line);
  --faq-rule-dark: 1px solid var(--line-dark);
  background: var(--paper);
  color: var(--text);
}

.page-faq [id] {
  scroll-margin-top: 120px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--dim);
}

.page-faq .faq-crumb a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-faq .faq-crumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 0 0 64px;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px solid var(--orange);
}

.page-faq .faq-hero__lead {
  padding-top: 40px;
  max-width: 880px;
}

.page-faq .faq-hero__lead .eyebrow {
  color: var(--orange);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 7.2vw, 54px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero__text {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-hero__text .mono {
  color: var(--orange);
  font-weight: 700;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__sub {
  margin: 52px 0 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--silver);
}

/* ---------- 三步概览 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 20px 26px 24px;
  background: var(--ink-2);
  border: var(--faq-rule-dark);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--orange);
}

.page-faq .faq-step__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--silver);
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-head {
  max-width: 780px;
}

.page-faq .faq-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 38px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
  text-wrap: balance;
}

.page-faq .faq-head p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .faq-head--dark h2 {
  color: var(--paper);
}

.page-faq .faq-head--dark p {
  color: var(--silver);
}

.page-faq .faq-head--dark .eyebrow {
  color: var(--orange);
}

/* ---------- 配置流程 ---------- */
.page-faq .faq-flow {
  padding: 68px 0 72px;
}

.page-faq .faq-flow__grid {
  display: grid;
  gap: 38px;
  margin-top: 40px;
}

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

.page-faq .faq-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 14px;
  padding-bottom: 30px;
}

.page-faq .faq-flow__item::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 40px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 90, 31, .55), rgba(255, 90, 31, .06));
}

.page-faq .faq-flow__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-flow__item:last-child::before {
  display: none;
}

.page-faq .faq-flow__num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--orange);
  text-align: left;
}

.page-faq .faq-flow__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

.page-faq .faq-flow__body p {
  margin: 9px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-flow__body .faq-flow__fb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: baseline;
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--silver);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-flow__fblabel {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--orange-deep);
  white-space: nowrap;
}

.page-faq .faq-flow__aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-note {
  padding: 20px 20px 22px;
  background: var(--ink);
  border-radius: var(--r);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-note--alt {
  background: var(--ink);
  border-left-color: var(--blue);
}

.page-faq .faq-note__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-note--alt .faq-note__label {
  color: var(--cyan);
}

.page-faq .faq-note p + p {
  margin-top: 10px;
}

.page-faq .faq-note p:not(.faq-note__label) {
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

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

/* ---------- 权限 ---------- */
.page-faq .faq-roles {
  padding: 68px 0 72px;
}

.page-faq .faq-roles__grid {
  margin-top: 42px;
}

.page-faq .faq-role {
  position: relative;
  padding: 28px 20px 24px;
  background: var(--paper);
  border: var(--faq-rule);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}

.page-faq .faq-role__tag {
  position: absolute;
  top: -12px;
  left: 18px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  border-radius: var(--r);
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-role--admin .faq-role__tag {
  background: var(--orange);
  color: var(--ink);
}

.page-faq .faq-role--editor .faq-role__tag {
  background: var(--blue);
  color: #FFFFFF;
}

.page-faq .faq-role--viewer .faq-role__tag {
  background: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-role__name {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

.page-faq .faq-role__rows {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-role__rows li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-top: 11px;
  border-top: var(--faq-rule);
}

.page-faq .faq-role__rows li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-role__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--muted);
  padding-top: 4px;
}

.page-faq .faq-role__v {
  font-size: 14.5px;
  line-height: 1.64;
  color: var(--text);
}

.page-faq .faq-roles__note {
  margin: 32px 0 0;
  padding: 20px 22px;
  max-width: 88ch;
  background: var(--paper-2);
  border-left: 3px solid var(--ink);
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--text);
}

.page-faq .faq-roles__note a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-qa {
  padding: 68px 0 72px;
}

.page-faq .faq-qa__grid {
  display: grid;
  gap: 26px;
  margin-top: 40px;
}

.page-faq .faq-qa__grouphead {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 8px;
  padding-bottom: 11px;
  border-bottom: 2px solid var(--ink);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-faq .faq-qa__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  display: inline-block;
}

.page-faq .faq-qa__dot--display {
  background: var(--orange);
}

.page-faq .faq-qa__dot--network {
  background: var(--blue);
}

.page-faq .faq-qa__dot--content {
  background: var(--cyan);
}

.page-faq .faq-qa__dot--access {
  background: var(--ink);
}

.page-faq .faq-q {
  border-bottom: var(--faq-rule);
}

.page-faq .faq-q summary {
  position: relative;
  padding: 13px 24px 13px 0;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s ease;
}

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

.page-faq .faq-q summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 11px;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange-deep);
}

.page-faq .faq-q[open] summary {
  color: var(--orange-deep);
}

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

.page-faq .faq-q summary:hover {
  color: var(--orange-deep);
}

.page-faq .faq-q p {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--text);
}

/* ---------- 排障速查 ---------- */
.page-faq .faq-trouble {
  padding: 68px 0 72px;
}

.page-faq .faq-trouble__fig {
  margin: 36px 0 0;
}

.page-faq .faq-trouble__wrap {
  margin-top: 30px;
}

.page-faq .faq-tr td {
  vertical-align: top;
  font-size: 13.5px;
  line-height: 1.62;
}

.page-faq .faq-tr td:first-child {
  font-weight: 700;
  color: var(--ink);
  border-left: 3px solid var(--silver);
}

.page-faq .faq-tr--quick td:first-child {
  border-left-color: var(--cyan);
}

.page-faq .faq-tr--mid td:first-child {
  border-left-color: var(--orange);
}

.page-faq .faq-tr--deep td:first-child {
  border-left-color: var(--ink);
}

/* ---------- 巡检 ---------- */
.page-faq .faq-patrol {
  padding: 68px 0 76px;
}

.page-faq .faq-patrol__cols {
  display: grid;
  gap: 30px;
  margin-top: 40px;
}

.page-faq .faq-patrol__head {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-faq .faq-check__item label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
}

.page-faq .faq-check__item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  padding: 0;
  border: 1px solid var(--silver);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.page-faq .faq-check__item input[type="checkbox"]:checked {
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-check__item input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-faq .faq-check__item input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-check__text {
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--silver);
}

.page-faq .faq-check__item input[type="checkbox"]:checked + .faq-check__text {
  color: var(--dim);
  text-decoration: line-through;
}

.page-faq .faq-signals {
  display: grid;
  gap: 26px;
  margin-top: 40px;
  padding-top: 34px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-signals h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

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

.page-faq .faq-signals li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.66;
  color: var(--silver);
}

.page-faq .faq-signals li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .faq-signals__col--warn li::before {
  background: var(--orange);
}

.page-faq .faq-cta {
  margin-top: 38px;
  padding: 24px 24px 26px;
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--orange);
  border-radius: var(--r);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 90ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--silver);
}

.page-faq .faq-cta a {
  color: var(--cyan);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-cta a:hover {
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-flow__item {
    grid-template-columns: 72px minmax(0, 1fr);
    column-gap: 22px;
  }

  .page-faq .faq-flow__item::before {
    left: 34px;
    top: 52px;
  }

  .page-faq .faq-flow__num {
    font-size: 40px;
  }

  .page-faq .faq-qa__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 26px;
  }

  .page-faq .faq-patrol__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px;
  }

  .page-faq .faq-signals {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding-bottom: 76px;
  }

  .page-faq .faq-hero__lead {
    padding-top: 52px;
  }

  .page-faq .faq-flow__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-qa__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-qa__grouphead {
    font-size: 15px;
  }

  .page-faq .faq-q summary {
    font-size: 14px;
  }

  .page-faq .faq-flow,
  .page-faq .faq-roles,
  .page-faq .faq-qa,
  .page-faq .faq-trouble,
  .page-faq .faq-patrol {
    padding-top: 84px;
    padding-bottom: 88px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q summary,
  .page-faq .faq-crumb a {
    transition: none;
  }
}