.page-faq {
  --faq-rail-w: 220px;
  --faq-gap: clamp(28px, 4vw, 64px);
  padding-bottom: clamp(64px, 10vw, 120px);
}

.page-faq .breadcrumb {
  padding-top: 22px;
  padding-bottom: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 6vw, 72px);
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(79, 240, 208, 0.10), transparent 60%),
    linear-gradient(180deg, #0C2019 0%, #07130F 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--grid) 30%, transparent);
}

.page-faq .hero-grid {
  display: grid;
  gap: 18px;
  max-width: 860px;
}

.page-faq .hero-grid .eyebrow {
  margin: 0;
}

.page-faq .hero-grid h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(28px, 4.6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .hero-lede {
  margin: 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(232, 244, 238, 0.88);
}

.page-faq .hero-facts {
  list-style: none;
  margin: 6px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--grid);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
}

.page-faq .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .hero-facts .data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .fact-label {
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 左栏时间轴 + 右栏问答 ---------- */
.page-faq .locator {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: clamp(32px, 5vw, 56px);
}

.page-faq .rail {
  border-top: 1px solid var(--grid);
  padding-top: 16px;
  min-width: 0;
}

.page-faq .rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

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

.page-faq .rail-track::-webkit-scrollbar {
  display: none;
}

.page-faq .rail-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .rail-item:hover,
.page-faq .rail-item:focus-visible {
  border-color: var(--cyan);
  color: var(--paper);
  background: var(--cyan-veil);
  outline: none;
}

.page-faq .rail-item:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-faq .faq-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 8vw, 96px);
}

.page-faq .faq-section {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-section .chapter-band {
  margin-bottom: 20px;
}

.page-faq .section-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 12px;
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 2.9vw, 32px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .section-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-faq .section-num::after {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-left: 10px;
  background: var(--cyan);
  vertical-align: middle;
}

.page-faq .section-lede {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(232, 244, 238, 0.86);
}

/* ---------- 两步图解 ---------- */
.page-faq .start-grid {
  display: grid;
  gap: 26px;
  align-items: start;
}

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

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  transition: border-color 0.22s var(--ease);
}

.page-faq .step:hover {
  border-color: rgba(79, 240, 208, 0.45);
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(34px, 5.4vw, 46px);
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .step-title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(232, 244, 238, 0.8);
}

.page-faq .step-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .step-figure .media-frame {
  max-width: 380px;
}

.page-faq .start-note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片容器 ---------- */
.page-faq .media-frame {
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--band);
}

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

.page-faq .media-caption {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .figure-wide {
  margin: 28px 0 0;
  min-width: 0;
}

.page-faq .figure-wide .media-frame {
  max-width: 560px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .qa-item {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .qa-item[open] {
  border-color: rgba(79, 240, 208, 0.45);
  background: #0E241C;
}

.page-faq .qa-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

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

.page-faq .qa-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .qa-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa-mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

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

.page-faq .qa-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .qa-a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(232, 244, 238, 0.82);
  animation: faqRise 0.22s var(--ease);
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  max-width: 34em;
}

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

.page-faq .qa-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 240, 208, 0.4);
}

.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

@keyframes faqRise {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 客服卡片 ---------- */
.page-faq .support-card {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 3.5vw, 34px);
  background:
    radial-gradient(90% 140% at 0% 0%, rgba(79, 240, 208, 0.10), transparent 62%),
    var(--panel);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
}

.page-faq .support-card .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: 0;
}

.page-faq .support-card .contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .support-card .contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .copy-btn {
  appearance: none;
  border: 1px solid var(--grid);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.4;
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: var(--cyan);
  background: var(--cyan-veil);
}

.page-faq .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .copy-btn.is-copied {
  border-color: var(--orange);
  color: var(--orange);
}

.page-faq .support-card .contact-note {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .support-extra {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--grid);
  max-width: 34em;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(232, 244, 238, 0.78);
}

.page-faq .support-extra a,
.page-faq .faq-outro a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 240, 208, 0.4);
}

.page-faq .support-extra a:hover,
.page-faq .support-extra a:focus-visible,
.page-faq .faq-outro a:hover,
.page-faq .faq-outro a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 尾部 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 26px;
  border-top: 1px solid var(--grid);
}

.page-faq .faq-outro p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .start-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 28px;
  }

  .page-faq .step-figure .media-frame {
    max-width: none;
  }
}

@media (min-width: 960px) {
  .page-faq .locator {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  }

  .page-faq .rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    border-top: 1px solid var(--grid);
    padding-top: 18px;
  }

  .page-faq .rail-track {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-faq .rail-track > li {
    position: relative;
    padding-left: 26px;
  }

  .page-faq .rail-track > li::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 16px;
    height: calc(100% + 6px);
    width: 1px;
    background: var(--grid);
  }

  .page-faq .rail-track > li:last-child::before {
    display: none;
  }

  .page-faq .rail-track > li::after {
    content: "";
    position: absolute;
    left: 2px;
    top: 15px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--ink);
    border: 1px solid var(--grid);
    transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
  }

  .page-faq .rail-track > li:hover::after {
    background: var(--cyan);
    border-color: var(--cyan);
  }

  .page-faq .rail-item {
    border: 0;
    background: transparent;
    padding: 10px 0;
    white-space: normal;
    border-radius: 0;
  }

  .page-faq .rail-item:hover {
    background: transparent;
  }
}

@media (min-width: 1120px) {
  .page-faq .start-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(240px, 1fr);
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-a {
    animation: none;
  }

  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after,
  .page-faq .step,
  .page-faq .qa-item,
  .page-faq .copy-btn,
  .page-faq .rail-item {
    transition: none;
  }
}
<<<END>>>