.page-faq {
  --faq-rail-w: 250px;
  --faq-block-gap: clamp(2.75rem, 6vw, 4.75rem);
  --faq-line-soft: 1px solid var(--grid-soft);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

/* ---------- 首屏：直接进入目录 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--grid);
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(1.75rem, 4vw, 3rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue) 42%, rgba(0, 217, 255, 0) 88%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-title {
  margin: 0.6rem 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: clamp(1.9rem, 6vw, 4.2rem);
  line-height: 1.06;
  color: var(--ink);
  max-width: 26ch;
}

.page-faq .faq-intro {
  margin: clamp(1rem, 2.5vw, 1.5rem) 0 0;
  max-width: 66ch;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-faq .faq-facts > div {
  background: var(--bg);
  padding: 0.9rem 1.05rem 1rem;
}

.page-faq .faq-facts dt {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-facts dd {
  margin: 0.4rem 0 0;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-faq .faq-topics {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-faq .faq-topics li {
  display: flex;
}

.page-faq .faq-topics li + li a {
  padding-left: clamp(0.9rem, 2.5vw, 1.5rem);
}

.page-faq .faq-topics a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.85rem clamp(0.9rem, 2.5vw, 1.5rem) 0.85rem 0;
  border-right: 1px solid var(--grid);
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-topics li:last-child a {
  border-right: 0;
}

.page-faq .faq-topics a:hover,
.page-faq .faq-topics a:focus-visible {
  color: var(--ink);
  border-color: var(--cyan);
}

.page-faq .faq-topics-num {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 侧边步骤索引 + 右侧连续画布 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-rail {
  border-top: 2px solid var(--grid);
  padding-top: 1rem;
  min-width: 0;
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.page-faq .faq-rail-list li + li {
  border-top: var(--faq-line-soft);
}

.page-faq .faq-rail-link {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.5rem;
  padding: 0.68rem 0.2rem 0.68rem 0;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.45;
  border-left: 2px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-faq .faq-rail-link > span:first-child {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  color: var(--ink);
  border-left-color: var(--cyan);
  padding-left: 0.5rem;
}

.page-faq .faq-rail .caption {
  display: block;
  margin: 1.1rem 0 0;
  padding-top: 0.9rem;
  border-top: var(--faq-line-soft);
  line-height: 1.65;
}

.page-faq .faq-canvas {
  display: grid;
  gap: var(--faq-block-gap);
  min-width: 0;
}

/* ---------- 步骤区块 ---------- */
.page-faq .faq-step {
  scroll-margin-top: calc(var(--rail-top) + 1.5rem);
  min-width: 0;
}

.page-faq .faq-step-head {
  display: flex;
  align-items: baseline;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--grid);
}

.page-faq .faq-step-num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.9rem, 6vw, 3.4rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-step-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 3.6vw, 2.1rem);
  letter-spacing: 0.03em;
  line-height: 1.2;
  color: var(--ink);
}

.page-faq .faq-lead {
  margin: clamp(1rem, 2.5vw, 1.4rem) 0 0;
  max-width: 68ch;
  color: var(--ink-2);
  font-size: clamp(0.98rem, 1.5vw, 1.075rem);
  line-height: 1.75;
}

/* ---------- 三个入口 ---------- */
.page-faq .faq-entries {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-faq .faq-entry {
  background: var(--bg);
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  display: grid;
  align-content: start;
  gap: 0.55rem;
}

.page-faq .faq-entry-idx {
  font-family: var(--font-data);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.page-faq .faq-entry-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-faq .faq-entry p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-entry-use {
  padding-left: 0.85rem;
  border-left: 2px solid var(--grid);
  color: var(--ink) !important;
  font-size: 0.9rem !important;
}

.page-faq .faq-entry-link {
  justify-self: start;
  margin-top: 0.25rem;
  padding-bottom: 0.15rem;
  color: var(--cyan);
  text-decoration: none;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  border-bottom: 1px solid rgba(25, 245, 208, 0.4);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-entry-link:hover,
.page-faq .faq-entry-link:focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: clamp(0.7rem, 2vw, 1.2rem);
  padding: clamp(0.9rem, 2vw, 1.2rem) 0;
  border-top: var(--faq-line-soft);
}

.page-faq .faq-steps > li:last-child {
  border-bottom: var(--faq-line-soft);
}

.page-faq .faq-steps-num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  padding-top: 0.25rem;
  color: var(--blue);
  letter-spacing: 0.04em;
}

.page-faq .faq-steps h3 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.7rem 0 0;
}

.page-faq .faq-tags .tag {
  font-size: 0.84rem;
}

/* ---------- 提示条 ---------- */
.page-faq .faq-note {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0.95rem 1.15rem;
  border-left: 3px solid var(--amber);
  background: linear-gradient(90deg, rgba(255, 176, 32, 0.1), rgba(255, 176, 32, 0) 72%);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 插图 ---------- */
.page-faq .faq-shot {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--grid);
  background: var(--bg-2);
}

.page-faq .faq-shot figcaption {
  margin-top: 0.65rem;
  line-height: 1.65;
}

/* ---------- 常见问题折叠 ---------- */
.page-faq .faq-qa-list {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
}

.page-faq .faq-qa {
  border-top: var(--faq-line-soft);
}

.page-faq .faq-qa:last-child {
  border-bottom: var(--faq-line-soft);
}

.page-faq .faq-qa-q {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 1.05rem 2.4rem 1.05rem 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-qa-q::after {
  content: "+";
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-qa[open] .faq-qa-q {
  color: var(--cyan);
}

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

.page-faq .faq-qa-q:hover,
.page-faq .faq-qa-q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-qa-a {
  padding: 0 0 clamp(1rem, 2.5vw, 1.4rem);
  max-width: 70ch;
}

.page-faq .faq-qa-a p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink-2);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--bg-2);
  border: 3px solid var(--grid);
  box-shadow: var(--hard-shadow);
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.page-faq .faq-contact-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.2rem;
  padding: 0.75rem 0;
  border-top: var(--faq-line-soft);
}

.page-faq .faq-contact-list li:last-child {
  border-bottom: var(--faq-line-soft);
}

.page-faq .faq-contact-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-contact-value {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.98rem, 2vw, 1.15rem);
  letter-spacing: -0.005em;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-check-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.page-faq .faq-check-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.35rem;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--ink);
  border-top: var(--faq-line-soft);
}

.page-faq .faq-check-list li:last-child {
  border-bottom: var(--faq-line-soft);
}

.page-faq .faq-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.02rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--amber);
}

.page-faq .faq-support-note {
  margin: 1rem 0 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.1rem 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) and (max-width: 979px) {
  .page-faq .faq-rail-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 1.75rem;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-entries {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact-list li {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--rail-top);
    align-self: start;
    max-height: calc(100vh - var(--rail-top) - 2rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-topics a,
  .page-faq .faq-rail-link,
  .page-faq .faq-entry-link,
  .page-faq .faq-qa-q {
    transition: none;
  }
}
</PAGE_CSS>>>