.page-faq {
  display: block;
  padding-bottom: clamp(32px, 6vw, 72px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(24px, 4vw, 48px) 0 clamp(22px, 3.4vw, 36px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 62px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__facts li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sand);
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: 6px 10px;
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding: clamp(32px, 5vw, 62px) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section--last {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-h2 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-h2 .chapter-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--sand);
}

.page-faq .faq-sub {
  margin: 12px 0 clamp(20px, 2.6vw, 28px);
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 状态卡 ---------- */
.page-faq .faq-triage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 18px 18px 22px;
}

.page-faq .faq-card--calendar {
  border-left: 3px solid var(--sand);
}

.page-faq .faq-card--login {
  border-left: 3px solid var(--signal);
}

.page-faq .faq-card__status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--muted);
}

.page-faq .faq-card--calendar .faq-card__status {
  color: var(--sand);
}

.page-faq .faq-card--login .faq-card__status {
  color: var(--signal);
}

.page-faq .faq-card h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
  margin: 16px 0 12px;
}

.page-faq .faq-card__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--paper);
}

.page-faq .faq-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 1px;
  background: var(--muted);
}

.page-faq .faq-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 图像 ---------- */
.page-faq .media-frame {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

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

/* ---------- 表现筛选 ---------- */
.page-faq .faq-filter {
  margin-top: clamp(24px, 3.2vw, 34px);
}

.page-faq .faq-filter__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-filter__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-filter__btn {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  padding: 7px 12px;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.page-faq .faq-filter__btn:hover {
  color: var(--paper);
  border-color: var(--signal-deep);
}

.page-faq .faq-filter__btn.is-active,
.page-faq .faq-filter__btn[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--signal);
  border-color: var(--signal);
}

.page-faq .faq-filter__status {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-faq .faq-filter__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-filter__item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 12px;
  align-items: start;
  background: var(--ink-900);
  padding: 13px 14px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper);
}

.page-faq .faq-filter__item[hidden] {
  display: none;
}

.page-faq .faq-filter__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--sand);
  padding-top: 2px;
}

/* ---------- 排查路径 ---------- */
.page-faq .faq-route {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-route::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 10px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(180deg, var(--signal), var(--line) 70%, transparent);
}

.page-faq .faq-route__item {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding-bottom: clamp(20px, 2.6vw, 28px);
}

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

.page-faq .faq-route__no {
  position: relative;
  z-index: 1;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--sand);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .faq-route__body {
  border-top: 1px solid var(--line);
  padding-top: 15px;
}

.page-faq .faq-route__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-route__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-route__body p {
  margin: 8px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-route__steps {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--signal) !important;
}

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

.page-faq .faq-tag--partial {
  color: var(--sand);
  border-color: var(--sand);
}

/* ---------- 开放内容 ---------- */
.page-faq .faq-open {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-open__row {
  background: var(--ink-800);
  padding: 18px 16px;
  display: grid;
  gap: 8px;
}

.page-faq .faq-open__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--signal);
}

.page-faq .faq-open__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
  max-width: 66ch;
}

.page-faq .faq-open__where {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

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

/* ---------- 编号步骤 ---------- */
.page-faq .faq-order {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-order__item {
  border: 1px solid var(--line);
  border-top: 2px solid var(--signal-deep);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
  padding: 16px 16px 18px;
}

.page-faq .faq-order__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-order__item h3 .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-faq .faq-order__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--muted);
  max-width: 68ch;
}

.page-faq .faq-order--check .faq-order__item {
  border-top-color: var(--sand);
}

/* ---------- 反馈清单 ---------- */
.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

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

.page-faq .faq-check__item label {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper);
  cursor: pointer;
}

.page-faq .faq-check__item input {
  width: 17px;
  height: 17px;
  margin: 3px 0 0;
  accent-color: var(--signal);
  cursor: pointer;
}

.page-faq .faq-check__item input:checked + span {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--signal-deep);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--signal-deep);
  background: var(--ink-700);
  padding: 18px 16px;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__col {
  min-width: 0;
}

.page-faq .faq-contact__label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.9vw, 19px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__value a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--signal);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-copy-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--signal);
  min-height: 1em;
}

.page-faq .faq-contact__note {
  margin: 0;
  grid-column: 1 / -1;
  font-size: 12.5px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-tail {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
  max-width: 64ch;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-open__row {
    grid-template-columns: 168px 1fr;
    gap: 20px;
    align-items: start;
    padding: 20px;
  }

  .page-faq .faq-open__name {
    padding-top: 2px;
  }

  .page-faq .faq-check__item label {
    padding: 15px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-triage__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 24px);
  }

  .page-faq .faq-card {
    padding: 20px 22px 24px;
  }

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

  .page-faq .faq-order--check {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    align-items: end;
    gap: 18px;
    padding: 22px 24px;
  }

  .page-faq .faq-contact__actions {
    align-self: end;
  }

  .page-faq .media-frame--square {
    max-width: 620px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-filter__btn {
    transition: none;
  }
}