.page-faq {
  --faq-soft: #B9C7BD;
  --faq-glow: rgba(201, 242, 77, 0.14);
  --faq-line-strong: rgba(201, 242, 77, 0.3);
  --faq-hover: rgba(255, 253, 246, 0.72);
  background: var(--paper-cream);
  color: var(--ink-charcoal);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  padding: clamp(22px, 4vw, 48px) 0 clamp(30px, 5vw, 64px);
  border-bottom: var(--rule);
  background: linear-gradient(180deg, var(--paper-deep), var(--paper-cream) 72%);
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  font-size: clamp(2.2rem, 7.4vw, 4.4rem);
  line-height: 1.04;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 44em;
  color: var(--ink-soft);
}

.page-faq .faq-hero-media {
  margin: 0;
}

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

.page-faq .faq-hero-media img {
  aspect-ratio: 1 / 1;
}

.page-faq .faq-search {
  margin-top: clamp(20px, 3vw, 30px);
  max-width: 460px;
}

.page-faq .faq-search-label {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--neutral-moss);
}

.page-faq .faq-search-input {
  width: 100%;
  margin-top: 8px;
  padding: 12px 14px;
  font: inherit;
  font-size: 0.95rem;
  color: var(--ink-charcoal);
  background: var(--card-ivory);
  border: 1px solid var(--rule-line);
  border-radius: var(--radius);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-faq .faq-search-input::placeholder {
  color: var(--neutral-moss);
}

.page-faq .faq-search-input:focus {
  border-color: var(--grass-primary);
  box-shadow: 0 0 0 3px var(--faq-glow);
  outline: none;
}

.page-faq .faq-search-input:focus-visible {
  outline: 2px solid var(--grass-primary);
  outline-offset: 2px;
}

.page-faq .faq-search-note {
  margin: 8px 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--neutral-moss);
}

/* 分类索引 */
.page-faq .faq-index {
  padding: clamp(36px, 6vw, 68px) 0 clamp(24px, 4vw, 44px);
}

.page-faq .faq-index-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-index-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  gap: 4px 12px;
  padding: 16px 18px;
  background: var(--card-ivory);
  border: 1px solid var(--rule-line);
  border-radius: var(--radius);
  color: var(--ink-charcoal);
  text-decoration: none;
  transition: background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast), transform var(--t-fast);
}

.page-faq .faq-index-card:hover {
  background: var(--paper-cream);
  border-color: var(--grass-primary);
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}

.page-faq .faq-index-card:focus-visible {
  outline: 2px solid var(--grass-primary);
  outline-offset: 2px;
}

.page-faq .faq-index-num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--grass-primary);
}

.page-faq .faq-index-name {
  font-size: 1rem;
  font-weight: 500;
}

.page-faq .faq-index-count {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--neutral-moss);
}

.page-faq .faq-index .note {
  margin-top: clamp(18px, 3vw, 26px);
  max-width: 56em;
}

/* 分组 */
.page-faq .faq-group {
  padding: clamp(34px, 6vw, 72px) 0;
  border-top: var(--rule);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 16px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1;
  color: var(--neutral-moss);
  padding-top: 4px;
}

.page-faq .faq-group-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}

.page-faq .faq-group-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--grass-primary);
  border: 1px solid var(--rule-line);
  border-radius: var(--radius);
  padding: 3px 9px;
  background: var(--card-ivory);
}

.page-faq .faq-group-lede {
  margin: 10px 0 0;
  max-width: 46em;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-group-media {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-faq .faq-group-media img {
  aspect-ratio: 2 / 1;
}

.page-faq .faq-group-media .media-frame-caption {
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--neutral-moss);
}

/* 问答 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-item {
  border-top: var(--rule);
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-item:last-child {
  border-bottom: var(--rule);
}

.page-faq .faq-item[open] {
  border-left-color: var(--grass-primary);
}

.page-faq .faq-item:hover {
  background: var(--faq-hover);
}

.page-faq .faq-q {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 15px 30px 15px 0;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ink-charcoal);
  transition: color var(--t-fast);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q:hover {
  color: var(--grass-primary);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--grass-primary);
  outline-offset: 2px;
}

.page-faq .faq-q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--grass-primary);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
}

.page-faq .faq-a {
  padding: 0 0 18px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 400;
  line-height: 1.78;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 40em;
}

.page-faq .faq-a a {
  color: var(--grass-primary);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* 每组结尾引导 */
.page-faq .faq-still {
  margin-top: clamp(20px, 3vw, 30px);
  padding: 16px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  background: var(--card-ivory);
  border: 1px solid var(--rule-line);
  border-left: 3px solid var(--grass-light);
  border-radius: var(--radius);
}

.page-faq .faq-still-title {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--grass-primary);
  letter-spacing: 0.02em;
}

.page-faq .faq-still p {
  margin: 0;
  flex: 1 1 240px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-still a {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--grass-primary);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-still a:hover {
  color: var(--grass-light);
}

/* 人工联系 */
.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 84px) 0;
  background: linear-gradient(158deg, var(--pitch-night-2) 0%, var(--pitch-night) 64%);
  color: var(--paper-cream);
}

.page-faq .faq-contact::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -46%;
  width: 62%;
  height: 300px;
  background: radial-gradient(closest-side, rgba(201, 242, 77, 0.16), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-contact .eyebrow {
  color: var(--volt-highlight);
}

.page-faq .faq-contact h2 {
  color: var(--paper-cream);
  margin: 8px 0 0;
}

.page-faq .faq-contact p {
  color: var(--faq-soft);
  max-width: 42em;
  line-height: 1.78;
}

.page-faq .faq-contact .note {
  font-size: 0.8rem;
  color: rgba(185, 199, 189, 0.78);
}

.page-faq .faq-contact-card {
  padding: 20px 22px;
  background: rgba(255, 253, 246, 0.05);
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--radius);
}

.page-faq .faq-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact .contact-item {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(216, 210, 194, 0.18);
}

.page-faq .faq-contact .contact-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-contact .contact-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--faq-soft);
}

.page-faq .faq-contact .contact-value {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--paper-cream);
  word-break: break-word;
}

.page-faq .contact-item-copy {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 12px;
}

.page-faq .contact-item-copy .contact-label {
  grid-column: 1 / -1;
}

.page-faq .copy-btn {
  font: inherit;
  font-size: 0.76rem;
  padding: 6px 12px;
  color: var(--pitch-night);
  background: var(--volt-highlight);
  border: 1px solid var(--volt-highlight);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}

.page-faq .copy-btn:hover {
  background: transparent;
  color: var(--volt-highlight);
}

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

/* 相关页面 */
.page-faq .faq-related {
  padding: clamp(34px, 6vw, 68px) 0 clamp(40px, 7vw, 80px);
}

.page-faq .faq-related-title {
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 500;
  margin: 0 0 clamp(16px, 3vw, 26px);
}

.page-faq .faq-related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border-top: var(--rule);
}

.page-faq .faq-related-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 14px 4px;
  border-bottom: var(--rule);
  color: var(--ink-charcoal);
  text-decoration: none;
  transition: background var(--t-fast), padding-left var(--t-fast), color var(--t-fast);
}

.page-faq .faq-related-link:hover {
  background: var(--faq-hover);
  padding-left: 12px;
  color: var(--grass-primary);
}

.page-faq .faq-related-link:focus-visible {
  outline: 2px solid var(--grass-primary);
  outline-offset: 2px;
}

.page-faq .faq-related-name {
  font-size: 0.98rem;
  font-weight: 500;
}

.page-faq .faq-related-desc {
  font-size: 0.82rem;
  color: var(--neutral-moss);
  line-height: 1.6;
}

@media (min-width: 620px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-related-list li:nth-child(odd) .faq-related-link {
    border-right: var(--rule);
    padding-right: 18px;
  }

  .page-faq .faq-related-list li:nth-child(even) .faq-related-link {
    padding-left: 18px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-hero-media {
    margin-bottom: 6px;
  }

  .page-faq .faq-item {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: clamp(24px, 4vw, 56px);
    padding-left: 20px;
  }

  .page-faq .faq-a {
    padding-top: 16px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-index-card {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    align-items: start;
    gap: 8px;
    padding: 18px 16px 20px;
    min-height: 132px;
  }

  .page-faq .faq-index-num {
    grid-row: auto;
    font-size: 1.35rem;
  }

  .page-faq .faq-contact-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

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

  .page-faq .faq-related-list li .faq-related-link {
    border-right: var(--rule);
    padding-right: 18px;
  }

  .page-faq .faq-related-list li:nth-child(3n) .faq-related-link {
    border-right: 0;
  }

  .page-faq .faq-related-list li:nth-child(3n + 2) .faq-related-link,
  .page-faq .faq-related-list li:nth-child(3n) .faq-related-link {
    padding-left: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-card,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-related-link,
  .page-faq .copy-btn,
  .page-faq .faq-search-input {
    transition: none;
  }

  .page-faq .faq-index-card:hover {
    transform: none;
  }
}