.page-faq {
  --faq-line: var(--line);
  --faq-soft: rgba(22, 34, 58, 0.55);
  background: var(--ink);
  color: var(--paper);
}

.page-faq section {
  scroll-margin-top: 88px;
}

.page-faq h1,
.page-faq h2,
.page-faq h3,
.page-faq h4 {
  margin: 0;
  font-family: var(--font-sans);
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq p {
  margin: 0;
}

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 224, 216, 0.28);
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 28px;
  padding-bottom: 12px;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 26px;
}

.page-faq .breadcrumbs a {
  color: var(--muted);
  border-bottom: 0;
}

.page-faq .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-faq .hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-faq .eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .hero-copy h1 {
  font-size: clamp(34px, 7.4vw, 66px);
  font-weight: 900;
  line-height: 1.12;
  max-width: 14em;
}

.page-faq .lede {
  margin-top: 20px;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.9;
  color: var(--muted);
}

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

.page-faq .hero-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 0;
}

.page-faq .hero-meta {
  align-self: start;
  padding: 22px 22px 12px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(13, 21, 36, 0.94), rgba(7, 12, 22, 0.7));
}

.page-faq .hero-meta-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 6px;
}

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

.page-faq .hero-jump li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line);
  font-size: 15px;
}

.page-faq .hero-jump li:last-child {
  border-bottom: 0;
}

.page-faq .hero-jump a {
  color: var(--paper);
  border-bottom: 0;
}

.page-faq .hero-jump a:hover {
  color: var(--cyan);
}

.page-faq .hero-jump .mono {
  font-size: 12px;
  color: var(--stone);
  letter-spacing: 0.06em;
}

/* ---------- 三步 ---------- */
.page-faq .section {
  padding-top: 56px;
}

.page-faq .sec-head {
  margin-bottom: 30px;
}

.page-faq .sec-head .h-lg {
  font-size: clamp(26px, 4.6vw, 42px);
  font-weight: 900;
  line-height: 1.16;
}

.page-faq .sec-head .prose {
  margin-top: 14px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .steps-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .step-cell {
  padding: 24px 0;
  border-top: 1px solid var(--faq-line);
  display: grid;
  gap: 10px;
}

.page-faq .step-num {
  font-size: clamp(34px, 8vw, 52px);
  font-weight: 400;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .step-title {
  font-size: 22px;
  font-weight: 900;
}

.page-faq .step-text {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 30em;
}

.page-faq .step-figure {
  margin-top: 34px;
}

.page-faq .media-frame {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

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

/* ---------- 问答题库 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .filter-btn {
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background 0.16s var(--ease);
}

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

.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .filter-btn:focus-visible,
.page-faq .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-count {
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-count .mono {
  color: var(--gold);
}

.page-faq .faq-group {
  margin-top: 46px;
}

.page-faq .faq-group:not(:has([data-filter-item]:not([hidden]))) {
  display: none;
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line);
  font-size: 22px;
  font-weight: 900;
}

.page-faq .faq-group-title .mono {
  font-size: 12px;
  color: var(--gold);
  border: 1px solid rgba(232, 180, 74, 0.4);
  background: rgba(232, 180, 74, 0.08);
  border-radius: 6px;
  padding: 3px 8px;
  letter-spacing: 0.06em;
}

.page-faq .group-note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--stone);
}

/* 折叠问答 */
.page-faq .acc {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .acc summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 20px 44px 20px 18px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  transition: color 0.16s var(--ease);
}

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

.page-faq .acc summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: transparent;
  transition: background 0.2s var(--ease);
}

.page-faq .acc summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--stone);
}

.page-faq .acc[open] summary::before {
  background: var(--cyan);
}

.page-faq .acc[open] summary::after {
  content: "−";
  color: var(--cyan);
}

.page-faq .acc summary:hover {
  color: var(--cyan);
}

.page-faq .acc-body {
  padding: 0 24px 22px 18px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .acc-body ol,
.page-faq .acc-body ul {
  margin: 4px 0 0;
  padding-left: 20px;
}

.page-faq .acc-body li {
  margin-bottom: 8px;
}

.page-faq .acc-body li:last-child {
  margin-bottom: 0;
}

.page-faq .acc-body p + ul {
  margin-top: 12px;
}

.page-faq .chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
  background: rgba(232, 180, 74, 0.1);
  border: 1px solid rgba(232, 180, 74, 0.4);
  border-radius: 6px;
  padding: 1px 7px;
  white-space: nowrap;
}

/* ---------- 自查清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .check-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--faq-line);
  align-items: start;
}

.page-faq .check-box {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--stone);
  border-radius: 6px;
}

.page-faq .check-list li:nth-child(1) .check-box,
.page-faq .check-list li:nth-child(2) .check-box {
  border-color: var(--moss);
}

.page-faq .check-list li:nth-child(1) .check-box::after,
.page-faq .check-list li:nth-child(2) .check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 3px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--moss);
  border-bottom: 2px solid var(--moss);
  transform: rotate(45deg);
}

.page-faq .check-list h4 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .check-list p {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .selfcheck-figure {
  margin-top: 34px;
  max-width: 520px;
}

/* ---------- 进阶设置 ---------- */
.page-faq .settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .setting-cell {
  padding: 24px 22px;
  background: var(--panel);
  transition: background 0.2s var(--ease);
}

.page-faq .setting-cell:hover {
  background: var(--track);
}

.page-faq .setting-code {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-faq .setting-cell h3 {
  font-size: 18px;
  font-weight: 900;
  margin-bottom: 8px;
}

.page-faq .setting-cell p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .reset-panel {
  margin-top: 28px;
  padding: 24px 24px 26px;
  border-left: 2px solid var(--clay);
  background: rgba(196, 112, 90, 0.07);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-faq .reset-panel .h-md {
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 10px;
}

.page-faq .reset-panel p {
  max-width: 44em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-next {
  padding-top: 64px;
}

.page-faq .next-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 32px 26px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(56, 224, 216, 0.08), rgba(13, 21, 36, 0.9) 52%, rgba(7, 12, 22, 0.92));
}

.page-faq .next-inner .h-md {
  font-size: clamp(21px, 3.4vw, 28px);
  font-weight: 900;
  line-height: 1.3;
}

.page-faq .next-inner .eyebrow {
  margin-bottom: 10px;
}

.page-faq .next-inner .prose {
  margin-top: 12px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .next-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 0;
}

.page-faq .copy-btn {
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(232, 180, 74, 0.45);
  background: rgba(232, 180, 74, 0.1);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: var(--gold);
  background: rgba(232, 180, 74, 0.18);
}

.page-faq .copy-btn.is-copied {
  background: var(--gold);
  color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .steps-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .step-cell {
    padding: 26px 26px 30px;
    border-top: 1px solid var(--faq-line);
  }

  .page-faq .step-cell:first-child {
    padding-left: 0;
  }

  .page-faq .step-cell:last-child {
    padding-right: 0;
  }

  .page-faq .step-cell + .step-cell {
    border-left: 1px solid var(--faq-line);
  }

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

@media (min-width: 1000px) {
  .page-faq .section {
    padding-top: 72px;
  }

  .page-faq .hero-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
    gap: 52px;
    align-items: end;
  }

  .page-faq .hero-meta {
    margin-bottom: 8px;
  }

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

  .page-faq .next-inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.9fr);
    align-items: center;
    gap: 36px;
    padding: 42px 40px;
  }

  .page-faq .next-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1240px) {
  .page-faq .hero-split {
    grid-template-columns: minmax(0, 1.7fr) minmax(300px, 0.7fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
  }
}