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

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

.page-faq [id] {
  scroll-margin-top: calc(var(--nb-head-h) + 16px);
}

/* ---------- 首屏 ---------- */
.page-faq .kb-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--nb-head-h) + 26px) 0 64px;
  color: var(--nb-cream);
  background:
    radial-gradient(120% 150% at 86% -12%, rgba(232, 255, 90, .16), transparent 56%),
    radial-gradient(90% 120% at 6% 108%, rgba(226, 65, 47, .22), transparent 60%),
    linear-gradient(158deg, var(--nb-green-900) 0%, var(--nb-black) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 46px));
}

.page-faq .kb-crumb {
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(237, 233, 225, .6);
}

.page-faq .kb-crumb a {
  color: inherit;
  text-decoration: none;
}

.page-faq .kb-crumb a:hover {
  color: var(--nb-yellow);
}

.page-faq .kb-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-faq .kb-eyebrow {
  color: var(--nb-yellow);
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  margin: 0 0 10px;
}

.page-faq .kb-h1 {
  margin: 0 0 16px;
  color: var(--nb-cream);
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.16;
  letter-spacing: -.01em;
  max-width: 20em;
}

.page-faq .kb-lead {
  margin: 0;
  color: rgba(237, 233, 225, .78);
  font-size: 15px;
  line-height: 1.7;
  max-width: 46em;
}

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

.page-faq .kb-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid rgba(201, 196, 184, .3);
  border-radius: var(--nb-radius);
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--nb-cream);
  text-decoration: none;
  transition: border-color .18s ease-out, color .18s ease-out;
}

.page-faq .kb-chip:hover,
.page-faq .kb-chip:focus-visible {
  border-color: var(--nb-yellow);
  color: var(--nb-yellow);
}

.page-faq .kb-chip__n {
  color: var(--nb-yellow);
  font-size: 11px;
}

.page-faq .kb-hero__media {
  margin: 0;
  border: 1px solid rgba(201, 196, 184, .24);
  background: var(--nb-green-700);
}

.page-faq .kb-hero__media img {
  width: 100%;
  object-fit: cover;
}

.page-faq .kb-hot {
  margin-top: 18px;
}

.page-faq .kb-hot__title {
  margin: 0 0 6px;
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(237, 233, 225, .55);
}

.page-faq .kb-hot__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: hotq;
}

.page-faq .kb-hot__list li {
  counter-increment: hotq;
  border-top: 1px solid rgba(201, 196, 184, .2);
}

.page-faq .kb-hot__list a {
  display: flex;
  gap: 12px;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--nb-cream);
  text-decoration: none;
}

.page-faq .kb-hot__list a::before {
  content: counter(hotq, decimal-leading-zero);
  font-family: var(--nb-font-mono);
  font-size: 12px;
  color: var(--nb-yellow);
  padding-top: 2px;
}

.page-faq .kb-hot__list a:hover {
  color: var(--nb-yellow);
}

.page-faq .kb-pulse {
  opacity: .55;
  margin: 0;
}

/* ---------- 主体骨架 ---------- */
.page-faq .kb-layout {
  display: grid;
  gap: 30px;
  padding-top: 44px;
  padding-bottom: 56px;
}

.page-faq .kb-index {
  border: 1px solid var(--nb-line);
  background: var(--nb-card);
  padding: 14px 12px;
  border-radius: var(--nb-radius);
}

.page-faq .kb-index__title {
  margin: 0 0 8px;
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--nb-muted);
}

.page-faq .kb-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .kb-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--nb-body);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .18s ease-out, border-color .18s ease-out, color .18s ease-out;
}

.page-faq .kb-index__link:hover,
.page-faq .kb-index__link:focus-visible {
  color: var(--nb-ink);
  border-left-color: var(--nb-yellow);
  background: rgba(232, 255, 90, .16);
}

.page-faq .kb-index__num {
  font-family: var(--nb-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--nb-red);
}

/* ---------- 问题组 ---------- */
.page-faq .kb-group {
  margin-bottom: 54px;
}

.page-faq .kb-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .kb-group__head {
  border-top: 2px solid var(--nb-ink);
  padding-top: 12px;
}

.page-faq .kb-group__num {
  margin: 0;
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--nb-red);
}

.page-faq .kb-group__head .nb-h2 {
  margin: 8px 0 10px;
  font-size: clamp(21px, 3.4vw, 28px);
  line-height: 1.25;
  color: var(--nb-ink);
  letter-spacing: -.01em;
}

.page-faq .kb-group__head .nb-text {
  margin: 0;
  max-width: 44em;
  color: var(--nb-muted);
  font-size: 14px;
}

.page-faq .kb-qa {
  margin-top: 18px;
}

.page-faq .kb-q {
  margin: 0;
  font-size: 16px;
}

.page-faq .nb-disclose {
  position: relative;
  padding-left: 14px;
  border-bottom: 1px solid var(--nb-line);
}

.page-faq .nb-disclose::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 0;
  background: var(--nb-yellow);
  transition: width .18s ease-out;
}

.page-faq .nb-disclose[data-open]::before {
  width: 3px;
}

.page-faq .nb-disclose__btn {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 15px 0;
  border: 0;
  background: none;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--nb-ink);
  cursor: pointer;
  transition: color .18s ease-out;
}

.page-faq .nb-disclose__btn:hover {
  color: var(--nb-red);
}

.page-faq .nb-disclose__btn:focus-visible {
  outline: 2px solid var(--nb-yellow);
  outline-offset: 2px;
}

.page-faq .kb-q__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--nb-muted);
}

.page-faq .kb-q__text {
  flex: 1 1 auto;
}

.page-faq .nb-disclose__icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 8px;
  margin-left: auto;
}

.page-faq .nb-disclose__icon::before,
.page-faq .nb-disclose__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--nb-red);
  transform: translateY(-50%);
}

.page-faq .nb-disclose__icon::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform .18s ease-out;
}

.page-faq .nb-disclose[data-open] .nb-disclose__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .nb-disclose__panel {
  padding: 0 0 18px 34px;
}

.page-faq .nb-disclose__body {
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--nb-body);
}

.page-faq .nb-disclose__body p {
  margin: 0 0 8px;
}

.page-faq .nb-disclose__body p:last-child {
  margin-bottom: 0;
}

.page-faq .nb-disclose__body a {
  color: var(--nb-red-700);
  text-underline-offset: 3px;
}

.page-faq .nb-disclose__body a:hover {
  color: var(--nb-red);
}

/* ---------- 图与字段表 ---------- */
.page-faq .kb-figure {
  margin: 26px 0 0;
  padding: 10px;
  border: 1px solid var(--nb-line);
  background: var(--nb-card);
  border-radius: var(--nb-radius);
  box-shadow: var(--nb-shadow);
}

.page-faq .kb-figure img {
  width: 100%;
  object-fit: cover;
}

.page-faq .kb-figure figcaption {
  padding-top: 9px;
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--nb-muted);
}

.page-faq .kb-fields {
  margin: 22px 0 0;
  border-top: 1px solid var(--nb-line);
}

.page-faq .kb-fields__row {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px solid var(--nb-line);
}

.page-faq .kb-fields dt {
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--nb-blue);
}

.page-faq .kb-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--nb-body);
}

/* ---------- 深色轮次区 ---------- */
.page-faq .kb-group--deep {
  position: relative;
  overflow: hidden;
  padding: 26px 20px 8px;
  border-radius: var(--nb-radius);
  background:
    radial-gradient(120% 140% at 92% 0%, rgba(226, 65, 47, .3), transparent 58%),
    linear-gradient(170deg, var(--nb-green-900), var(--nb-green-700));
  color: var(--nb-cream);
}

.page-faq .kb-group--deep .kb-group__head {
  border-top-color: rgba(232, 255, 90, .55);
}

.page-faq .kb-group--deep .nb-h2 {
  color: var(--nb-cream);
}

.page-faq .kb-group--deep .nb-text {
  color: rgba(237, 233, 225, .72);
}

.page-faq .kb-group--deep .kb-group__num {
  color: var(--nb-yellow);
}

.page-faq .kb-stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 18px 0 6px;
  padding: 0;
}

.page-faq .kb-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .kb-stats .nb-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--nb-yellow);
  line-height: 1.1;
}

.page-faq .kb-stats__label {
  font-family: var(--nb-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(237, 233, 225, .6);
}

.page-faq .kb-group--deep .nb-disclose {
  border-bottom-color: rgba(201, 196, 184, .22);
}

.page-faq .kb-group--deep .nb-disclose::before {
  background: var(--nb-yellow);
}

.page-faq .kb-group--deep .nb-disclose__btn {
  color: var(--nb-cream);
}

.page-faq .kb-group--deep .nb-disclose__btn:hover {
  color: var(--nb-yellow);
}

.page-faq .kb-group--deep .kb-q__num {
  color: rgba(237, 233, 225, .5);
}

.page-faq .kb-group--deep .nb-disclose__icon::before,
.page-faq .kb-group--deep .nb-disclose__icon::after {
  background: var(--nb-yellow);
}

.page-faq .kb-group--deep .nb-disclose__body {
  color: rgba(237, 233, 225, .8);
}

.page-faq .kb-group--deep .nb-disclose__body a {
  color: var(--nb-yellow);
}

/* ---------- 收束 ---------- */
.page-faq .kb-cta {
  background: var(--nb-cream);
  padding: 0 0 72px;
}

.page-faq .kb-cta__inner {
  display: grid;
  gap: 20px;
  border: 1px solid var(--nb-line-strong);
  border-left: 3px solid var(--nb-red);
  background: var(--nb-card);
  padding: 24px 20px;
  border-radius: var(--nb-radius);
}

.page-faq .kb-cta__text .nb-h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--nb-ink);
}

.page-faq .kb-cta__text .nb-text {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  color: var(--nb-muted);
}

.page-faq .kb-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 自适应 ---------- */
@media (min-width: 560px) {
  .page-faq .kb-fields__row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-faq .kb-group--deep {
    padding: 30px 26px 10px;
  }
}

@media (min-width: 760px) {
  .page-faq .kb-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 28px 30px;
  }
}

@media (min-width: 960px) {
  .page-faq .kb-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .kb-hero {
    padding-bottom: 84px;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 68px));
  }
}

@media (min-width: 1000px) {
  .page-faq .kb-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(34px, 5vw, 76px);
    align-items: start;
    padding-top: 56px;
    padding-bottom: 72px;
  }

  .page-faq .kb-index {
    position: sticky;
    top: calc(var(--nb-head-h) + 20px);
    border: 0;
    background: transparent;
    padding: 0;
  }

  .page-faq .kb-index__list {
    display: block;
    overflow: visible;
  }

  .page-faq .kb-index__link {
    padding: 9px 12px;
  }

  .page-faq .kb-group {
    margin-bottom: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .nb-disclose::before,
  .page-faq .nb-disclose__icon::after,
  .page-faq .kb-chip,
  .page-faq .kb-index__link,
  .page-faq .nb-disclose__btn {
    transition: none;
  }
}