.page-faq {
  --faq-ink: #33465c;
  --faq-dim: #5a6f88;
  --faq-line: #dbe5f1;
  background: var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: 56px;
  background:
    radial-gradient(120% 100% at 12% 0%, rgba(27, 76, 134, 0.6) 0%, rgba(10, 26, 47, 0) 62%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--blue-700) 100%);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 6px;
  background: repeating-linear-gradient(90deg,
      rgba(159, 190, 224, 0.35) 0 1px,
      transparent 1px 34px);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero__main h1 {
  margin: 12px 0 20px;
  font-size: clamp(30px, 6.2vw, 56px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: #fff;
}

.page-faq .eyebrow {
  color: var(--copper-300);
}

.page-faq .faq-lead {
  max-width: 62ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-lead a {
  color: var(--copper-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__quick a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--light-100);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-hero__quick a:hover {
  border-color: var(--copper-500);
  color: var(--copper-300);
}

.page-faq .faq-stats {
  margin: 0;
  padding: 18px 20px;
  border: 1px solid var(--line-mid);
  border-radius: var(--radius);
  background: rgba(10, 26, 47, 0.5);
  backdrop-filter: blur(8px);
}

.page-faq .faq-stats__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-stats__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-stats__term {
  font-size: 13.5px;
  color: var(--text-dim);
}

.page-faq .faq-stats__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  color: var(--copper-300);
  white-space: nowrap;
}

/* ---------- 改约时间轴 ---------- */
.page-faq .faq-timeline {
  padding: 56px 0 60px;
  background: linear-gradient(180deg, var(--blue-700) 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-section-title {
  margin: 10px 0 16px;
  font-size: clamp(23px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: #fff;
}

.page-faq .faq-timeline__svg {
  display: block;
  width: 100%;
  height: auto;
  margin: 30px 0 22px;
}

.page-faq .faq-timeline__grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-nodes {
  display: grid;
  gap: 16px;
}

.page-faq .faq-node {
  padding: 20px 20px 18px;
  border-radius: var(--radius);
  border-top: 4px solid var(--copper-500);
  background: var(--paper-50);
  color: var(--text-900);
}

.page-faq .faq-node--48 {
  border-top-color: var(--foam-500);
}

.page-faq .faq-node__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--copper-500);
}

.page-faq .faq-node--48 .faq-node__tag {
  color: #1c7f74;
}

.page-faq .faq-node h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text-900);
}

.page-faq .faq-node p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-ink);
}

.page-faq .faq-node__meta {
  margin: 0;
  padding-top: 11px;
  border-top: 1px dashed var(--grid-300);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--copper-500);
}

.page-faq .faq-node--48 .faq-node__meta {
  color: #1c7f74;
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--line-mid);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(10, 26, 47, 0.6);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-shot figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--text-dim);
}

.page-faq .faq-timeline__qa {
  margin-top: 30px;
  max-width: 78ch;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--grid-300);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 6px;
  list-style: none;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--text-900);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--copper-500);
}

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

.page-faq .faq-item[open] {
  border-radius: var(--radius-sm);
  background: #eef4fb;
}

.page-faq .faq-item__body {
  max-width: 68ch;
  margin: 0;
  padding: 0 6px 20px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-ink);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__body a {
  color: var(--blue-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .q-mark {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: #6e94bf;
}

.page-faq .faq-item--dark {
  border-bottom-color: var(--line-mid);
}

.page-faq .faq-item--dark summary {
  color: var(--light-100);
}

.page-faq .faq-item--dark .q-mark {
  color: var(--blue-200);
}

.page-faq .faq-item--dark:hover summary {
  color: var(--copper-300);
}

.page-faq .faq-item--dark[open] {
  background: rgba(159, 190, 224, 0.08);
}

.page-faq .faq-item--dark .faq-item__body {
  color: var(--text-dim);
}

.page-faq .faq-item--dark .faq-item__body a {
  color: var(--copper-300);
}

/* ---------- 问答主体两栏 ---------- */
.page-faq .faq-body {
  padding: 54px 0 72px;
  background: var(--paper-50);
  color: var(--text-900);
}

.page-faq .faq-shell {
  display: grid;
  gap: 32px;
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blue-500);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--grid-300);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--text-900);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-toc__link:hover {
  border-color: var(--copper-500);
  background: #fdf6ef;
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--copper-500);
}

.page-faq .faq-toc__note {
  display: none;
  margin: 14px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--foam-500);
  background: #eaf7f5;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-ink);
}

.page-faq .faq-group {
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--text-900);
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: var(--copper-500);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-900);
}

.page-faq .faq-group__lead {
  grid-column: 2;
  max-width: 62ch;
  margin: 6px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .faq-figure {
  display: grid;
  gap: 18px;
  margin: 0 0 20px;
}

.page-faq .faq-shot--material {
  border-color: var(--grid-300);
  background: #fff;
}

.page-faq .faq-shot--material figcaption {
  border-top-color: var(--faq-line);
  color: var(--faq-dim);
}

.page-faq .faq-chart {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--grid-300);
  border-radius: var(--radius);
  background: #fff;
}

.page-faq .faq-chart__cap {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faq-dim);
}

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

.page-faq .faq-chart__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 12px;
  align-items: baseline;
}

.page-faq .faq-chart__label {
  font-size: 13.5px;
  color: var(--faq-ink);
}

.page-faq .faq-chart__val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-900);
}

.page-faq .faq-chart__track {
  grid-column: 1 / -1;
  display: block;
  height: 10px;
  border-radius: 5px;
  background: #e4ecf6;
  overflow: hidden;
}

.page-faq .faq-chart__bar {
  display: block;
  height: 100%;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--foam-500) 0%, #7ad6c9 100%);
}

.page-faq .faq-chart__bar--1 { width: 34%; }
.page-faq .faq-chart__bar--2 { width: 54%; }
.page-faq .faq-chart__bar--3 { width: 73%; }
.page-faq .faq-chart__bar--4 { width: 100%; }

.page-faq .faq-contact {
  display: grid;
  gap: 14px;
  margin-top: 26px;
  padding: 22px 20px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--blue-700) 0%, var(--ink-900) 100%);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 5px;
}

.page-faq .faq-contact__term {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--blue-200);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  line-height: 1.65;
  color: var(--light-100);
}

.page-faq .faq-contact__row:first-child .faq-contact__value,
.page-faq .faq-contact__row:nth-child(2) .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--copper-300);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding-bottom: 68px;
  }

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

  .page-faq .faq-figure {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-contact {
    grid-template-columns: 1fr 1fr;
    gap: 18px 28px;
    padding: 24px 26px;
  }

  .page-faq .faq-contact__row:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 318px;
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-timeline {
    padding: 68px 0 72px;
  }

  .page-faq .faq-timeline__grid {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 32px;
    align-items: start;
  }

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

  .page-faq .faq-timeline__qa {
    max-width: 82ch;
  }

  .page-faq .faq-body {
    padding: 68px 0 92px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-toc__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__link {
    border: 0;
    border-left: 3px solid var(--grid-300);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-toc__link:hover {
    background: #eaf1f9;
    border-left-color: var(--copper-500);
  }

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

@media (min-width: 1180px) {
  .page-faq .faq-timeline__grid {
    grid-template-columns: minmax(0, 1fr) 440px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-toc__link,
  .page-faq .faq-hero__quick a {
    transition: none;
  }
}
<<<END>>>