.page-faq {
  --faq-border: 3px solid var(--ink);
  --faq-radius: 2px;
  --faq-shadow: 6px 6px 0 0 rgba(17, 20, 23, 0.55);
  --faq-shadow-sm: 4px 4px 0 0 rgba(17, 20, 23, 0.45);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 0;
}

.page-faq .breadcrumbs {
  padding-block: 1rem 0.5rem;
  font-size: var(--step--1);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 首屏检索 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(140deg, var(--ink) 0%, var(--green-deep) 68%, var(--green) 100%);
  color: var(--paper);
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(2.25rem, 6vw, 4.5rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(217, 164, 65, 0.16) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(217, 164, 65, 0.1) 0 1px, transparent 1px 64px);
  pointer-events: none;
  opacity: 0.85;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 8.5vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 0.35rem 0 0;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero-lede {
  margin-top: 1rem;
  max-width: 46ch;
  color: rgba(247, 241, 230, 0.86);
  font-size: var(--step-1);
  line-height: 1.72;
}

.page-faq .faq-search {
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
  background: var(--gold-light);
  border: var(--faq-border);
  box-shadow: var(--faq-shadow);
  padding: clamp(0.9rem, 2.6vw, 1.35rem);
  color: var(--ink);
  max-width: 620px;
}

.page-faq .faq-search-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-deep);
  margin-bottom: 0.6rem;
}

.page-faq .faq-search-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  background: var(--paper);
  border: 2px solid var(--green-deep);
  padding: 0.35rem 0.75rem;
}

.page-faq .faq-search-icon {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--green-deep);
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 0.7rem 0.1rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--ink);
  outline-offset: 4px;
}

.page-faq .faq-search-input::placeholder {
  color: var(--gray);
  font-family: var(--font-body);
}

.page-faq .faq-search-hint {
  margin: 0.65rem 0 0;
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-faq .faq-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.15rem 0 0;
  padding: 0;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border: 1.5px solid var(--line-gold);
  color: var(--paper);
  font-size: var(--step--1);
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: var(--faq-border);
  border-color: rgba(217, 164, 65, 0.6);
  background: linear-gradient(160deg, var(--graphite), var(--green-deep));
  box-shadow: var(--faq-shadow);
  padding: 0.5rem;
  transform: rotate(-1.2deg);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(217, 164, 65, 0.3);
}

.page-faq .faq-hero-figure .media-caption {
  color: rgba(247, 241, 230, 0.72);
  font-size: var(--step--1);
  padding: 0.6rem 0.25rem 0.15rem;
}

/* ---------- 通用栏目标题 ---------- */
.page-faq .faq-section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-section-head .h-section {
  margin: 0.4rem 0 0.8rem;
}

.page-faq .faq-section-head .body-text a {
  color: var(--green);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 规则说明 ---------- */
.page-faq .faq-rules {
  background: var(--paper);
}

.page-faq .faq-rules-head {
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-faq .faq-rules-heading .h-section {
  margin: 0.4rem 0 0;
}

.page-faq .faq-rules-intro .body-text {
  margin: 0 0 1rem;
}

.page-faq .faq-version {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  border-left: 5px solid var(--orange);
  padding-left: 0.9rem;
}

.page-faq .faq-version .figure {
  font-family: var(--font-mono);
  font-size: clamp(2.6rem, 9vw, 4.2rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--gold-deep);
  letter-spacing: -0.04em;
}

.page-faq .faq-version-label {
  font-size: var(--step--1);
  font-weight: 700;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
}

.page-faq .faq-rules-grid {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-rule-card {
  border: var(--faq-border);
  box-shadow: var(--faq-shadow-sm);
  padding: 1.15rem 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 100%;
}

.page-faq .faq-rule-card h3 {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}

.page-faq .faq-rule-card p {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.7;
}

.page-faq .faq-rule-num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  opacity: 0.75;
}

.page-faq .faq-rule-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid currentColor;
  padding-bottom: 2px;
}

.page-faq .faq-rule-link:hover,
.page-faq .faq-rule-link:focus-visible {
  color: var(--orange);
}

.page-faq .faq-rule-card--a {
  background: var(--gold-light);
  color: var(--ink);
}

.page-faq .faq-rule-card--b {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--green-deep);
}

.page-faq .faq-rule-card--c {
  background: var(--green);
  color: var(--paper);
  border-color: var(--green-deep);
}

.page-faq .faq-rule-card--d {
  background: var(--graphite);
  color: var(--paper);
  border-color: var(--gold-deep);
}

.page-faq .faq-rules-figure {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  border: var(--faq-border);
  background: var(--gold-light);
  padding: 0.6rem;
  box-shadow: var(--faq-shadow-sm);
}

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

.page-faq .faq-rules-figure .media-caption {
  color: var(--ink-soft);
  font-size: var(--step--1);
  padding: 0.6rem 0.2rem 0.1rem;
}

/* ---------- 热门问题分组 ---------- */
.page-faq .faq-hot {
  background: var(--paper);
  border-top: 3px solid var(--ink);
  padding-top: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-hot-grid {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-hot-card {
  background: #fffdf8;
  border: 2px solid var(--ink);
  border-left: 6px solid var(--gold);
  padding: 1.05rem 1rem 1.1rem;
  box-shadow: var(--faq-shadow-sm);
  scroll-margin-top: 6rem;
}

.page-faq .faq-hot-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 800;
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

.page-faq .faq-hot-mark {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  background: var(--orange);
  border-radius: 50%;
}

.page-faq .faq-hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .faq-hot-list a {
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.55rem 0.15rem;
  border-bottom: 1px dashed var(--line-ink);
  color: var(--ink);
  text-decoration: none;
  font-size: var(--step-0);
  line-height: 1.55;
}

.page-faq .faq-hot-list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-hot-list a .figure {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold-deep);
  flex: 0 0 auto;
}

.page-faq .faq-hot-list a:hover,
.page-faq .faq-hot-list a:focus-visible {
  color: var(--green);
  background: rgba(244, 213, 141, 0.35);
}

/* ---------- 展开问答 ---------- */
.page-faq .faq-answers {
  background: linear-gradient(180deg, var(--paper) 0%, #fffdf8 100%);
}

.page-faq .faq-list {
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-item {
  border: 2px solid var(--ink);
  border-left: 6px solid var(--graphite);
  background: var(--paper);
  box-shadow: var(--faq-shadow-sm);
  scroll-margin-top: 6rem;
  transition: border-left-color 0.2s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--orange);
  background: #fffdf8;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.5;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--green-deep);
  transition: transform 0.2s ease, color 0.2s ease;
}

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

.page-faq .faq-item-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-deep);
  padding-top: 0.2rem;
}

.page-faq .faq-item-q {
  min-width: 0;
}

.page-faq .faq-item-body {
  padding: 0 1rem 1.1rem 2.35rem;
  font-size: var(--step-0);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-item-body p {
  margin: 0;
}

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

/* ---------- 人工帮助 ---------- */
.page-faq .faq-help {
  background: var(--green-deep);
  color: var(--paper);
  padding-block: clamp(2rem, 5.5vw, 3.5rem);
  border-top: 6px solid var(--gold);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-help::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border: 22px solid rgba(217, 164, 65, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-help-inner {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-help-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5.5vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin: 0.4rem 0 0.75rem;
  line-height: 1.1;
}

.page-faq .faq-help-copy p {
  margin: 0 0 1.25rem;
  max-width: 46ch;
  color: rgba(247, 241, 230, 0.86);
  line-height: 1.75;
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-help-list {
  margin: 0;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-faq .faq-help-item {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  background: var(--graphite);
  border: 2px solid rgba(217, 164, 65, 0.45);
  box-shadow: var(--faq-shadow-sm);
}

.page-faq .faq-help-item dt {
  color: var(--gold-light);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  font-weight: 700;
}

.page-faq .faq-help-item dd {
  margin: 0;
  color: var(--paper);
  font-size: var(--step-0);
  line-height: 1.55;
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-rules-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 2rem;
  }

  .page-faq .faq-rules-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-faq .faq-hot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

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

  .page-faq .faq-rules-figure {
    margin-top: 2rem;
  }

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

  .page-faq .faq-item summary {
    font-size: var(--step-1);
    padding: 1.05rem 1.25rem;
  }

  .page-faq .faq-item-body {
    padding: 0 1.25rem 1.2rem 2.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item summary::after {
    transition: none;
  }
}