.page-faq {
  --faq-cut: 14px;
  --faq-paper-line: rgba(28, 23, 16, .16);
  --faq-paper-dim: #6E6350;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(24px, 4.4vw, 52px) 0 clamp(24px, 3.4vw, 40px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(880px 300px at 84% -14%, var(--glow), transparent 68%),
    linear-gradient(180deg, var(--surface-alt), var(--bg) 74%);
  overflow: hidden;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-faq .faq-hero-main {
  min-width: 0;
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.6vw, 58px);
  line-height: 1.06;
  letter-spacing: .01em;
  color: var(--heading);
  max-width: 18ch;
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--text-dim);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  background: linear-gradient(155deg, var(--surface) 0%, var(--ink-800) 100%);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-faq .faq-hero-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(46px, 9vw, 66px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--accent);
}

.page-faq .faq-hero-card-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: clamp(26px, 4vw, 50px) 0 clamp(30px, 4vw, 56px);
  background: var(--bg);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

/* ---------- 左侧抽屉轨道 ---------- */
.page-faq .faq-rail {
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  background: var(--surface);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-faq .faq-rail-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--label);
}

.page-faq .faq-rail-text {
  font-weight: 600;
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  color: var(--heading);
  border-left-color: var(--accent);
  background: var(--signal-soft);
  outline: none;
}

/* ---------- 面板 ---------- */
.page-faq .faq-panels {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  min-width: 0;
}

.page-faq .faq-panel {
  border-top: 1px solid var(--line);
  padding-top: clamp(18px, 2.6vw, 28px);
  min-width: 0;
}

.page-faq .faq-panel-head {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .faq-panel-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-faq .faq-panel-meta > span:first-child {
  color: var(--accent);
}

.page-faq .faq-panel-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.18;
  color: var(--heading);
}

.page-faq .faq-panel-sub {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

/* ---------- 奶油纸面档案卡 ---------- */
.page-faq .faq-paper {
  padding: 20px 18px;
  background: var(--cream);
  color: var(--brown);
  border: 1px solid var(--faq-paper-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-paper-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--faq-paper-dim);
}

.page-faq .faq-steplist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--faq-paper-line);
}

.page-faq .faq-step:first-child {
  padding-top: 0;
}

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

.page-faq .faq-step-no {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cream);
  background: var(--brown);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-faq .faq-step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--brown);
}

.page-faq .faq-step-text b {
  color: var(--accent-deep);
  font-weight: 700;
}

/* ---------- 同步示意图 ---------- */
.page-faq .faq-sync-fig {
  margin: 0;
}

.page-faq .faq-sync-fig .ky-media {
  border: 1px solid var(--line);
  background: var(--surface-alt);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-sync-fig .ky-figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 同步进度条 ---------- */
.page-faq .faq-meter {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
}

.page-faq .faq-meter-track {
  position: relative;
  height: 8px;
  background: rgba(53, 232, 192, .12);
  overflow: hidden;
}

.page-faq .faq-meter-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--teal-deep), var(--teal));
  transform: scaleX(1);
  transform-origin: left center;
  animation: faqMeter 3.2s cubic-bezier(.2, .8, .3, 1) infinite;
}

.page-faq .faq-meter-legend {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-faq .faq-meter-legend > span:last-child {
  color: var(--accent);
}

@keyframes faqMeter {
  0%   { transform: scaleX(.04); }
  68%  { transform: scaleX(1); }
  100% { transform: scaleX(1); }
}

/* ---------- 问题手风琴 ---------- */
.page-faq .faq-items {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color .18s ease, background-color .18s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--accent);
  background: var(--surface-alt);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 22px;
  gap: 8px;
  align-items: center;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--label);
}

.page-faq .faq-item[open] .faq-item-no {
  color: var(--accent);
}

.page-faq .faq-item-title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--heading);
}

.page-faq .faq-item-mark {
  position: relative;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  background: var(--surface-alt);
}

.page-faq .faq-item-mark::before,
.page-faq .faq-item-mark::after {
  content: "";
  position: absolute;
  background: var(--text-dim);
}

.page-faq .faq-item-mark::before {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-faq .faq-item-mark::after {
  left: 50%;
  top: 4px;
  bottom: 4px;
  width: 1.5px;
  transform: translateX(-50%);
  transition: opacity .18s ease;
}

.page-faq .faq-item[open] .faq-item-mark {
  border-color: var(--accent);
}

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

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

.page-faq .faq-item-body {
  padding: 0 14px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-item-body p {
  margin: 0;
}

.page-faq .faq-item-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 入口轨迹图 ---------- */
.page-faq .faq-path-fig {
  margin: 18px 0 0;
}

.page-faq .faq-path-fig .ky-media {
  border: 1px solid var(--line);
  background: var(--surface-alt);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-path-fig .ky-figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-path {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 16px;
  color: var(--teal-deep);
}

.page-faq .faq-path-line {
  stroke: currentColor;
  stroke-dasharray: 6 6;
}

.page-faq .faq-path-node {
  fill: var(--accent);
  stroke: var(--bg);
  stroke-width: 2;
}

.page-faq .faq-path-node--amber {
  fill: var(--amber);
}

.page-faq .faq-path-node--coral {
  fill: var(--coral);
}

.page-faq .faq-path-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 6px;
}

.page-faq .faq-path-legend-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-dim);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  padding: clamp(28px, 4vw, 52px) 0 clamp(34px, 5vw, 60px);
  background: linear-gradient(180deg, var(--surface-alt), var(--bg));
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-contact-main {
  min-width: 0;
}

.page-faq .faq-contact-text {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-contact-text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-addr {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--label);
  word-break: break-all;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-areas:
    "no label"
    ". desc";
  gap: 4px 10px;
  padding: 13px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-faq .faq-contact-no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--coral);
  padding-top: 2px;
}

.page-faq .faq-contact-label {
  grid-area: label;
  font-size: 15px;
  font-weight: 700;
  color: var(--heading);
}

.page-faq .faq-contact-desc {
  grid-area: desc;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(16px, 2.4vw, 26px);
  }

  .page-faq .faq-item > summary {
    grid-template-columns: 52px minmax(0, 1fr) 22px;
    padding: 15px 18px;
  }

  .page-faq .faq-item-body {
    padding: 0 18px 18px 70px;
  }

  .page-faq .faq-contact-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(30px, 3.4vw, 54px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-faq .faq-rail-link {
    width: 100%;
    border: 1px solid var(--line);
    border-left-width: 3px;
    padding: 12px 13px;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    transform: translateX(2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-meter-fill {
    animation: none;
    transform: scaleX(1);
  }

  .page-faq .faq-item,
  .page-faq .faq-item-mark::after,
  .page-faq .faq-rail-link {
    transition: none;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    transform: none;
  }
}
<<<END>>>