.page-faq {
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-line: rgba(107, 113, 104, 0.32);
  --faq-soft: rgba(107, 113, 104, 0.16);
  --faq-clay-deep: #8c3323;
  background: var(--paper);
  color: var(--black);
}

/* 面包屑 */
.page-faq .faq-crumb {
  border-bottom: 1px solid var(--faq-soft);
  background: var(--paper);
}
.page-faq .faq-crumb .container {
  padding-top: 13px;
  padding-bottom: 13px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(244, 239, 227, 0.07) 1px, transparent 1px);
  background-size: 92px 100%;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24%;
  max-width: 300px;
  height: 100%;
  background: linear-gradient(180deg, var(--clay), var(--faq-clay-deep));
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.94;
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(34px, 6vw, 72px);
  padding-bottom: clamp(30px, 5vw, 58px);
  max-width: 760px;
}
.page-faq .faq-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: rgba(244, 239, 227, 0.72);
}
.page-faq .faq-kicker .mono {
  padding: 3px 7px;
  background: var(--line);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(34px, 6.2vw, 66px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-faq .faq-hero-lead {
  margin: 20px 0 0;
  max-width: 46em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(244, 239, 227, 0.84);
}
.page-faq .faq-clock {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(244, 239, 227, 0.2);
  background: rgba(244, 239, 227, 0.2);
}
.page-faq .faq-clock-item {
  padding: 13px 16px;
  background: var(--ink);
}
.page-faq .faq-clock-item .mono {
  display: block;
  font-size: 18px;
  line-height: 1;
  color: var(--line);
  letter-spacing: 0.04em;
}
.page-faq .faq-clock-item p {
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(244, 239, 227, 0.74);
}
.page-faq .faq-path-strip {
  display: grid;
  gap: 1px;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(244, 239, 227, 0.2);
  background: rgba(244, 239, 227, 0.2);
}
.page-faq .faq-path-strip a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  background: rgba(244, 239, 227, 0.04);
  color: var(--paper);
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.page-faq .faq-path-strip a:hover,
.page-faq .faq-path-strip a:focus-visible {
  background: var(--line);
  color: var(--ink);
}
.page-faq .faq-path-num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--line);
  transition: color 0.18s ease;
}
.page-faq .faq-path-strip a:hover .faq-path-num,
.page-faq .faq-path-strip a:focus-visible .faq-path-num {
  color: var(--ink);
}
.page-faq .faq-path-label {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.08em;
}

/* 路径图 */
.page-faq .faq-figure-block {
  padding-top: clamp(28px, 5vw, 58px);
}
.page-faq .faq-media {
  border: 1px solid var(--faq-line);
  background: var(--white);
}
.page-faq .faq-figure-block .media-caption {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 3px solid var(--clay);
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  letter-spacing: 0.02em;
}

/* 主体两栏 */
.page-faq .faq-body {
  padding-top: clamp(32px, 5vw, 66px);
  padding-bottom: clamp(40px, 7vw, 92px);
}
.page-faq .faq-body-grid {
  display: grid;
  gap: var(--faq-gap);
}

/* 左侧路径栏 */
.page-faq .faq-rail-inner {
  border-top: 3px solid var(--clay);
  padding-top: 16px;
}
.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--stone);
}
.page-faq .faq-rail-title--nav {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--faq-soft);
}
.page-faq .faq-step-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-step {
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-soft);
}
.page-faq .faq-step:first-child {
  padding-top: 0;
}
.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  color: var(--clay);
}
.page-faq .faq-step-title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--black);
}
.page-faq .faq-step-copy {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--moss);
}
.page-faq .faq-rail-link {
  display: block;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  border-color: var(--clay);
  background: rgba(166, 64, 45, 0.06);
}
.page-faq .faq-jump-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-jump-list li + li {
  border-top: 1px solid var(--faq-soft);
}
.page-faq .faq-jump-list a {
  display: block;
  padding: 9px 0 9px 14px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--stone);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.page-faq .faq-jump-list a:hover,
.page-faq .faq-jump-list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--line);
}

/* 问答分组 */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 62px);
}
.page-faq .faq-group-head {
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 0;
}
.page-faq .faq-group-head .eyebrow {
  color: var(--clay);
  font-size: 12px;
  letter-spacing: 0.18em;
}
.page-faq .faq-group-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--black);
}

.page-faq .faq-list {
  border-bottom: 1px solid var(--faq-soft);
}
.page-faq .qa {
  border-top: 1px solid var(--faq-soft);
  background: transparent;
  transition: background-color 0.18s ease;
}
.page-faq .qa:first-child {
  border-top: none;
}
.page-faq .qa[open] {
  background: var(--white);
}
.page-faq .qa-summary {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 16px 14px 16px 12px;
  cursor: pointer;
  list-style: none;
  border-left: 3px solid transparent;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.page-faq .qa-summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa-summary::marker {
  content: "";
}
.page-faq .qa-summary:hover,
.page-faq .qa-summary:focus-visible {
  border-left-color: var(--moss);
}
.page-faq .qa[open] > .qa-summary {
  border-left-color: var(--clay);
}
.page-faq .qa-index {
  flex: none;
  min-width: 24px;
  padding-top: 2px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--terracotta);
}
.page-faq .qa-text {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--black);
}
.page-faq .qa-mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  color: var(--stone);
}
.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.page-faq .qa-mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}
.page-faq .qa-mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  transition: transform 0.18s ease;
}
.page-faq .qa[open] .qa-mark::after {
  transform: scaleY(0);
}
.page-faq .qa[open] .qa-mark {
  color: var(--clay);
}
.page-faq .qa-body {
  padding: 0 16px 20px 47px;
}
.page-faq .qa-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--moss);
  max-width: 62ch;
}
.page-faq .qa-body a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 主客场示意图 */
.page-faq .faq-diagram {
  margin: 20px 0 0;
  padding: 18px 16px 14px;
  border: 1px solid var(--faq-line);
  background: var(--table);
}
.page-faq .faq-chart {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
  margin: 0 auto;
}
.page-faq .chart-axis {
  stroke: var(--stone);
  stroke-width: 1;
}
.page-faq .chart-bar--a {
  fill: var(--clay);
}
.page-faq .chart-bar--b {
  fill: var(--terracotta);
}
.page-faq .chart-bar--c {
  fill: var(--moss);
}
.page-faq .chart-bar--d {
  fill: var(--stone);
}
.page-faq .chart-label {
  font-family: var(--font-body);
  font-size: 11px;
  fill: #161a17;
}
.page-faq .faq-diagram-caption {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--stone);
  text-align: center;
}

.page-faq .faq-inline-link {
  margin: 18px 0 0;
}
.page-faq .faq-inline-link a {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--line);
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.18s ease;
}
.page-faq .faq-inline-link a:hover,
.page-faq .faq-inline-link a:focus-visible {
  border-bottom-color: var(--clay);
}

/* 纹理图 */
.page-faq .faq-texture {
  margin: clamp(30px, 4.5vw, 52px) 0 0;
  border: 1px solid var(--faq-line);
  overflow: hidden;
}
.page-faq .faq-texture img {
  display: block;
  width: 100%;
  height: 132px;
  object-fit: cover;
  filter: saturate(0.85);
}

/* 常见错误 */
.page-faq .faq-fix-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--faq-soft);
}
.page-faq .faq-fix {
  padding: 18px 16px 20px;
  background: var(--white);
  border-left: 3px solid var(--clay);
}
.page-faq .faq-fix .tag {
  font-size: 11px;
  letter-spacing: 0.08em;
}
.page-faq .faq-fix-problem {
  margin: 10px 0 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--black);
}
.page-faq .faq-fix-do {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}
.page-faq .faq-fix-do .mono {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  background: var(--table);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.06em;
}

/* 反馈入口 */
.page-faq .faq-contact-card {
  padding: clamp(24px, 4vw, 40px);
  background: var(--ink);
  color: var(--paper);
  border-top: 4px solid var(--line);
}
.page-faq .faq-contact-card .eyebrow--light {
  color: var(--line);
  font-size: 12px;
  letter-spacing: 0.18em;
}
.page-faq .faq-contact-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--paper);
}
.page-faq .faq-contact-lead {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 239, 227, 0.78);
}
.page-faq .faq-contact-list {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(244, 239, 227, 0.2);
  background: rgba(244, 239, 227, 0.2);
}
.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: baseline;
  padding: 11px 14px;
  background: var(--ink);
}
.page-faq .faq-contact-key {
  flex: none;
  min-width: 72px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--line);
}
.page-faq .faq-contact-value {
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.page-faq .btn--light-line {
  border-color: rgba(244, 239, 227, 0.42);
  color: var(--paper);
}
.page-faq .btn--light-line:hover,
.page-faq .btn--light-line:focus-visible {
  border-color: var(--line);
  color: var(--line);
}

/* 断点 */
@media (min-width: 560px) {
  .page-faq .faq-clock {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-path-strip {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-fix-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-contact-list li {
    flex-wrap: nowrap;
  }
  .page-faq .faq-texture img {
    height: 168px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-body-grid {
    grid-template-columns: minmax(230px, 288px) minmax(0, 1fr);
    gap: clamp(30px, 4.2vw, 64px);
    align-items: start;
  }
  .page-faq .faq-rail-inner {
    position: sticky;
    top: 24px;
  }
  .page-faq .qa-summary {
    padding: 19px 20px 19px 16px;
  }
  .page-faq .qa-text {
    font-size: 16px;
  }
  .page-faq .qa-body {
    padding: 0 24px 24px 52px;
  }
  .page-faq .faq-fix {
    padding: 22px 22px 24px;
  }
  .page-faq .faq-texture img {
    height: 210px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero-inner {
    max-width: 800px;
  }
  .page-faq .faq-group-title {
    max-width: 22ch;
  }
}

@media (max-width: 479px) {
  .page-faq .qa-body {
    padding-left: 16px;
  }
  .page-faq .qa-index {
    min-width: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-summary,
  .page-faq .qa-mark::after,
  .page-faq .faq-path-strip a,
  .page-faq .faq-path-num,
  .page-faq .faq-rail-link,
  .page-faq .faq-jump-list a,
  .page-faq .faq-inline-link a {
    transition: none;
  }
}
<<<END>>>