.page-faq {
  background-color: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin: 0;
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--line-dark-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--on-ink);
  padding: clamp(26px, 4vw, 48px) 0 clamp(40px, 6vw, 76px);
}

.page-faq .faq-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .breadcrumbs {
  margin-bottom: 1.4rem;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 0.5rem;
  color: var(--mist);
}

.page-faq .breadcrumb-link {
  color: var(--on-ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .breadcrumb-current {
  color: var(--on-ink);
}

.page-faq .faq-eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero h1 {
  font-size: clamp(1.85rem, 5.2vw, 3.5rem);
  max-width: 20ch;
  margin-bottom: 1.1rem;
}

.page-faq .faq-lede {
  max-width: 54ch;
  margin: 0;
  color: var(--on-ink-dim);
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero-actions .btn {
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  background-color: var(--layer);
}

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

/* ---------- 区块通用 ---------- */
.page-faq .faq-section {
  padding: clamp(42px, 7vw, 88px) 0;
}

.page-faq .faq-section--ink {
  background-color: var(--ink);
  color: var(--on-ink);
}

.page-faq .faq-section--cream {
  background-color: var(--cream);
}

.page-faq .faq-head {
  display: grid;
  gap: 0.45rem;
  margin-bottom: clamp(22px, 4vw, 40px);
  padding-top: 0.9rem;
  border-top: 2px solid var(--text);
}

.page-faq .faq-section--ink .faq-head {
  border-top-color: var(--on-ink);
}

.page-faq .faq-section--cream .faq-head {
  border-top-color: var(--text);
}

.page-faq .faq-head-index {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--action);
}

.page-faq .faq-head-title {
  font-size: clamp(1.35rem, 3.1vw, 2.1rem);
  max-width: 24ch;
}

.page-faq .faq-head-note {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.page-faq .faq-section--ink .faq-head-note {
  color: var(--on-ink-dim);
}

/* ---------- 标签页 ---------- */
.page-faq .faq-tabs {
  position: relative;
}

.page-faq .faq-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-faq .faq-tabbar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-faq .faq-tab {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.8rem 0.9rem;
  background-color: var(--paper);
  cursor: pointer;
  box-shadow: inset 0 -3px 0 transparent;
  transition: background-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.page-faq .faq-tab-idx {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.page-faq .faq-tab-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.page-faq .faq-tab:hover {
  background-color: var(--cream);
}

.page-faq #faq-t1:checked ~ .faq-tabbar .faq-tab[for="faq-t1"],
.page-faq #faq-t2:checked ~ .faq-tabbar .faq-tab[for="faq-t2"],
.page-faq #faq-t3:checked ~ .faq-tabbar .faq-tab[for="faq-t3"],
.page-faq #faq-t4:checked ~ .faq-tabbar .faq-tab[for="faq-t4"] {
  background-color: var(--cream);
  box-shadow: inset 0 -3px 0 var(--lime);
}

.page-faq #faq-t1:checked ~ .faq-tabbar .faq-tab[for="faq-t1"] .faq-tab-idx,
.page-faq #faq-t2:checked ~ .faq-tabbar .faq-tab[for="faq-t2"] .faq-tab-idx,
.page-faq #faq-t3:checked ~ .faq-tabbar .faq-tab[for="faq-t3"] .faq-tab-idx,
.page-faq #faq-t4:checked ~ .faq-tabbar .faq-tab[for="faq-t4"] .faq-tab-idx {
  color: var(--lime-ink);
}

.page-faq #faq-t1:focus-visible ~ .faq-tabbar .faq-tab[for="faq-t1"],
.page-faq #faq-t2:focus-visible ~ .faq-tabbar .faq-tab[for="faq-t2"],
.page-faq #faq-t3:focus-visible ~ .faq-tabbar .faq-tab[for="faq-t3"],
.page-faq #faq-t4:focus-visible ~ .faq-tabbar .faq-tab[for="faq-t4"] {
  outline: 2px solid var(--action);
  outline-offset: -3px;
}

.page-faq .faq-panels {
  border: 1px solid var(--line-light);
  border-top: 0;
  background-color: var(--paper);
  padding: clamp(18px, 3.4vw, 36px);
}

.page-faq .faq-panel {
  display: block;
}

.page-faq #faq-t1:checked ~ .faq-panels .faq-panel,
.page-faq #faq-t2:checked ~ .faq-panels .faq-panel,
.page-faq #faq-t3:checked ~ .faq-panels .faq-panel,
.page-faq #faq-t4:checked ~ .faq-panels .faq-panel {
  display: none;
}

.page-faq #faq-t1:checked ~ .faq-panels .faq-panel--login,
.page-faq #faq-t2:checked ~ .faq-panels .faq-panel--mobile,
.page-faq #faq-t3:checked ~ .faq-panels .faq-panel--entry,
.page-faq #faq-t4:checked ~ .faq-panels .faq-panel--feedback {
  display: block;
}

.page-faq .faq-panel-title {
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  margin-bottom: 0.5rem;
}

.page-faq .faq-panel-lede {
  margin: 0 0 1.4rem;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line-light);
  background-color: transparent;
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.85rem 0.75rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--action);
}

.page-faq .faq-item[open] {
  background-color: var(--cream);
}

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

.page-faq .faq-item summary:hover {
  color: var(--alert);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: -2px;
}

.page-faq .faq-path {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line-light);
  color: var(--ink-soft);
  white-space: nowrap;
}

.page-faq .faq-body {
  padding: 0 0.75rem 1.15rem;
  font-size: 0.95rem;
  color: var(--text);
}

.page-faq .faq-body > p {
  margin: 0 0 0.8rem;
}

.page-faq .faq-note {
  margin: 0.6rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--lime);
  font-size: 0.86rem;
  color: var(--ink-soft);
}

/* ---------- 步骤与要点列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 0 0 0.8rem;
  padding: 0;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  margin-left: 0.6rem;
  padding: 0 0 0.7rem 1.5rem;
  border-left: 1px solid var(--line-light);
}

.page-faq .faq-steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: -0.62rem;
  top: 0.3rem;
  width: 1.2rem;
  height: 1.2rem;
  display: grid;
  place-items: center;
  background-color: var(--ink);
  color: var(--on-ink);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  line-height: 1;
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0.15rem;
}

.page-faq .faq-points {
  margin: 0 0 0.8rem;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.45rem;
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.4rem;
  height: 1px;
  background-color: var(--action);
}

.page-faq .faq-inline-link {
  color: var(--alert);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--lime);
  background-color: var(--lime);
}

.page-faq .faq-more {
  margin: 1.2rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- 统计条 ---------- */
.page-faq .faq-tally {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--line-light);
  border: 1px solid var(--line-light);
  border-top: 0;
}

.page-faq .faq-tally-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.9rem 1rem;
  background-color: var(--cream);
}

.page-faq .faq-tally-num {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--action);
}

.page-faq .faq-tally-text {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* ---------- 路径图区块 ---------- */
.page-faq .faq-path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line-dark);
  background-color: var(--layer);
}

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

.page-faq .faq-figcaption {
  padding: 0.7rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--on-ink-dim);
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-path-copy .faq-head-title {
  margin: 0.6rem 0 0.9rem;
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 1.6rem 0 0;
  background-color: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-faq .faq-facts > div {
  background-color: var(--ink);
  padding: 1rem 1.1rem;
}

.page-faq .faq-facts dt {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
}

.page-faq .faq-facts dd {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--on-ink-dim);
}

/* ---------- 协议与联系 ---------- */
.page-faq .faq-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--line-light);
  border: 1px solid var(--line-light);
}

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 1.15rem 1.1rem;
  background-color: var(--paper);
}

.page-faq .faq-card-title {
  font-size: 1.05rem;
}

.page-faq .faq-card-text {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-contact-row {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.page-faq .faq-contact-value {
  font-size: 0.95rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 1.1rem 0 0;
  max-width: 66ch;
  font-size: 0.86rem;
  color: var(--ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-tally {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

@media (min-width: 760px) {
  .page-faq .faq-tabbar {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-tab {
    padding: 0.95rem 1.1rem;
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-faq .faq-path-grid {
    grid-template-columns: 0.78fr 1fr;
  }

  .page-faq .faq-panels {
    padding: clamp(24px, 3vw, 40px) clamp(24px, 3.4vw, 44px);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero {
    padding-top: clamp(32px, 3vw, 56px);
  }

  .page-faq .faq-item summary {
    font-size: 1.02rem;
  }
}

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