.page-faq {
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ice);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.32;
  filter: saturate(0.85);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(157, 245, 231, 0.055) 79px 80px),
    linear-gradient(112deg, rgba(7, 17, 28, 0.95) 5%, rgba(11, 31, 51, 0.86) 46%, rgba(58, 46, 110, 0.58) 100%);
}

.page-faq .faq-hero-inner {
  padding-top: clamp(28px, 5vw, 62px);
  padding-bottom: clamp(38px, 6vw, 84px);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-mute);
}

.page-faq .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  color: var(--cyan);
  opacity: 0.55;
}

.page-faq .breadcrumbs a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: #f4fafc;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.2vw, 16.5px);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-faq .faq-glance {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  background: rgba(216, 226, 232, 0.06);
  backdrop-filter: blur(8px);
}

.page-faq .faq-glance::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 3px;
  background: var(--ember);
}

.page-faq .faq-glance-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-glance-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-glance-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-faq .faq-glance-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-glance-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ember);
}

/* ---------- 问题分区 ---------- */
.page-faq .faq-board {
  padding: clamp(46px, 7vw, 96px) 0 clamp(54px, 8vw, 104px);
  background: var(--frost);
  color: var(--ink);
}

.page-faq .faq-board .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #0e6b5e;
}

.page-faq .faq-board .section-title {
  margin: 0 0 14px;
  max-width: 26ch;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 35px);
  line-height: 1.22;
  letter-spacing: -0.006em;
  color: var(--ice);
}

.page-faq .faq-board .section-note {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(7, 17, 28, 0.66);
}

.page-faq .faq-tabs {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-faq .faq-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-tab {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border: 1px solid rgba(7, 17, 28, 0.18);
  background: rgba(255, 255, 255, 0.55);
  color: rgba(7, 17, 28, 0.74);
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.25;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-tab:hover {
  border-color: #0e3b3a;
  color: var(--ice);
}

.page-faq .faq-tab[aria-selected="true"] {
  background: var(--ice);
  border-color: var(--ice);
  color: var(--cyan-soft);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

.page-faq .faq-tab-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  opacity: 0.72;
}

.page-faq .faq-panel {
  outline: none;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 6px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid rgba(7, 17, 28, 0.12);
  border-left: 3px solid rgba(7, 17, 28, 0.16);
  background: rgba(255, 255, 255, 0.72);
  transition: border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

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

.page-faq .faq-item[open] {
  border-left-color: var(--ember);
  background: #ffffff;
  box-shadow: 0 14px 30px -24px rgba(7, 17, 28, 0.55);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-cn);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-q {
  transition: color 0.18s ease;
}

.page-faq .faq-item > summary:hover .faq-q {
  color: #0e6b5e;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: rgba(7, 17, 28, 0.42);
}

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

.page-faq .faq-mark {
  position: relative;
  align-self: center;
  width: 15px;
  height: 15px;
  flex: none;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--ice);
  transition: transform 0.22s ease, opacity 0.22s ease, background 0.22s ease;
}

.page-faq .faq-mark::before {
  left: 0;
  top: 7px;
  width: 15px;
  height: 1.5px;
}

.page-faq .faq-mark::after {
  top: 0;
  left: 7px;
  width: 1.5px;
  height: 15px;
}

.page-faq .faq-item[open] .faq-mark::before {
  background: var(--ember);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
  transform: scaleY(0);
}

.page-faq .faq-a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(7, 17, 28, 0.75);
}

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

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

.page-faq .faq-a a {
  color: #0e6b5e;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(14, 107, 94, 0.35);
  transition: text-decoration-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-a a:hover,
.page-faq .faq-a a:focus-visible {
  color: #0b5248;
  text-decoration-color: #0b5248;
}

.page-faq .faq-a .mono {
  font-family: var(--font-mono);
  font-size: 0.95em;
  font-weight: 500;
  color: var(--ice);
}

.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border: 1px solid rgba(7, 17, 28, 0.14);
  background: #ffffff;
}

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

.page-faq .faq-figure .media-caption {
  padding: 12px 16px;
  border-top: 1px solid rgba(7, 17, 28, 0.1);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(7, 17, 28, 0.6);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  padding: clamp(48px, 7vw, 92px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(58, 46, 110, 0.92) 0%, rgba(11, 31, 51, 0.96) 60%, rgba(7, 17, 28, 1) 100%);
}

.page-faq .faq-cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-cta h2 {
  margin: 0 0 14px;
  max-width: 22ch;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.24;
  color: #f4fafc;
}

.page-faq .faq-cta p {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta-card {
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(8px);
}

.page-faq .faq-cta-card dl {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-cta-card dt {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-cta-card dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-a {
    padding-left: 62px;
  }

  .page-faq .faq-item > summary {
    padding: 18px 22px;
  }

  .page-faq .faq-a {
    padding-right: 22px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(290px, 0.88fr);
    align-items: end;
  }

  .page-faq .faq-glance {
    padding: 26px 26px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-cta-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(270px, 0.8fr);
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-mark::before,
  .page-faq .faq-mark::after,
  .page-faq .breadcrumbs a {
    transition: none;
  }
}
<<<END>>>