.page-faq {
  --faq-orange: var(--orange);
  --faq-mint: var(--mint);
  --faq-line: rgba(28, 21, 18, 0.16);
  --faq-line-inv: rgba(243, 235, 221, 0.22);
  display: block;
  background: var(--paper-white);
  color: var(--text);
  overflow-x: hidden;
}

.page-faq .faq-shell {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding-inline: clamp(16px, 4vw, 48px);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding-block: calc(var(--header-h) + 18px) 48px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(243, 235, 221, 0.055) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, rgba(243, 235, 221, 0.055) 0 1px, transparent 1px 46px);
  pointer-events: none;
}

.page-faq .faq-hero > .faq-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--steel);
  margin-bottom: 24px;
}

.page-faq .faq-crumb a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(243, 235, 221, 0.35);
}

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

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  letter-spacing: 0.16em;
}

.page-faq h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(34px, 8vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: 0 0 24px;
  max-width: 620px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(243, 235, 221, 0.84);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.page-faq .faq-status-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(243, 235, 221, 0.78);
}

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

.page-faq .status-light {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  flex: none;
}

.page-faq .faq-light--mint {
  background: var(--mint);
}

.page-faq .faq-light--ember {
  background: var(--ember);
}

.page-faq .faq-hero-side {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-hero-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 2px solid var(--faq-line-inv);
  background: var(--harbor);
  aspect-ratio: 16 / 10;
}

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

.page-faq .faq-hero-cap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: rgba(243, 235, 221, 0.62);
}

.page-faq .faq-hero-cap .mono-label {
  color: var(--mint);
}

/* ---------- 诊断卡 ---------- */
.page-faq .faq-diagnosis {
  margin-top: 44px;
}

.page-faq .faq-diagnosis h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .diag-row {
  display: grid;
  gap: 12px;
}

.page-faq .diag-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 18px;
  border: 2px solid var(--faq-line-inv);
  background: rgba(11, 58, 92, 0.42);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease, background-color 0.16s ease;
}

.page-faq .diag-card:hover,
.page-faq .diag-card:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 90, 31, 0.12);
  transform: translateY(-2px);
}

.page-faq .diag-card:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .diag-light {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--steel);
}

.page-faq .diag-light--orange {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.18);
}

.page-faq .diag-light--mint {
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(111, 231, 192, 0.16);
}

.page-faq .diag-light--ember {
  background: var(--ember);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.16);
}

.page-faq .diag-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .diag-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .diag-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 235, 221, 0.74);
}

.page-faq .diag-go {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mint);
}

.page-faq .diag-card:hover .diag-go,
.page-faq .diag-card:focus-visible .diag-go {
  color: var(--orange);
}

/* ---------- 斜切分隔 ---------- */
.page-faq .faq-slant {
  height: 16px;
  background: linear-gradient(90deg, var(--orange), var(--ember));
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* ---------- 分支图 ---------- */
.page-faq .faq-branch {
  background: var(--paper);
  padding-block: 44px;
}

.page-faq .branch-head {
  max-width: 640px;
  margin-bottom: 24px;
}

.page-faq .branch-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .branch-head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(28, 21, 18, 0.76);
}

.page-faq .branch-scroll {
  overflow-x: auto;
  padding-bottom: 6px;
}

.page-faq .branch-graph {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-faq .branch-link {
  fill: none;
  stroke: var(--steel);
  stroke-width: 1.5;
}

.page-faq .branch-node rect {
  fill: var(--paper-white);
  stroke: var(--faq-line);
  stroke-width: 2;
}

.page-faq .branch-node--q rect {
  fill: var(--ink);
  stroke: var(--ink);
}

.page-faq .branch-node text {
  font-family: var(--font-mono);
  font-size: 15px;
  fill: var(--text);
}

.page-faq .branch-node--q text {
  fill: var(--paper);
}

/* ---------- 问答两栏 ---------- */
.page-faq .faq-body {
  background: var(--paper-white);
  padding-block: 48px 56px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-index {
  border: 2px solid var(--faq-line);
  background: var(--paper);
  padding: 16px;
}

.page-faq .index-label {
  margin: 0 0 10px;
  color: var(--signal);
  letter-spacing: 0.14em;
}

.page-faq .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .index-link {
  display: block;
  padding: 7px 10px;
  border: 1px solid var(--faq-line);
  background: var(--paper-white);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease, background-color 0.15s ease;
}

.page-faq .index-link:hover,
.page-faq .index-link:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 90, 31, 0.08);
}

.page-faq .index-link:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .faq-group {
  margin-bottom: 40px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

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

.page-faq .group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 2px solid var(--text);
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.page-faq .group-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 27px);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-item {
  border: 2px solid var(--faq-line);
  background: var(--paper-white);
  margin-bottom: 10px;
  transition: border-color 0.15s ease;
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--text);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--signal);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-faq .faq-item summary:hover::after {
  color: var(--mint);
}

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

.page-faq .q-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
  padding-top: 3px;
}

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

.page-faq .faq-answer {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--faq-line);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(28, 21, 18, 0.84);
}

.page-faq .next-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  background: var(--harbor);
  color: var(--paper);
  padding-block: 52px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: 30px;
}

.page-faq .contact-eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  letter-spacing: 0.14em;
}

.page-faq .faq-contact h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .contact-lede {
  margin: 0 0 22px;
  max-width: 620px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(243, 235, 221, 0.82);
}

.page-faq .contact-list {
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .contact-row {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-left: 3px solid var(--orange);
  background: rgba(7, 27, 43, 0.42);
}

.page-faq .contact-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .contact-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-note {
  margin: 0 0 20px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(243, 235, 221, 0.66);
}

.page-faq .contact-media {
  margin: 0;
  border: 2px solid var(--faq-line-inv);
  background: var(--ink);
  aspect-ratio: 10 / 7;
  overflow: hidden;
}

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

/* ---------- 尾部 ---------- */
.page-faq .faq-tail {
  background: var(--ink);
  color: var(--paper);
  padding-block: 34px 40px;
  border-top: 3px solid var(--orange);
}

.page-faq .tail-inner {
  display: grid;
  gap: 16px;
}

.page-faq .tail-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

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

.page-faq .tail-links a {
  display: block;
  padding: 10px 14px;
  border: 1px solid var(--faq-line-inv);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.page-faq .tail-links a:hover,
.page-faq .tail-links a:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
}

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

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .tail-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding-block: calc(var(--header-h) + 28px) 60px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 48px;
  }

  .page-faq .faq-hero-media {
    aspect-ratio: 4 / 5;
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-faq .index-list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .index-link {
    padding: 9px 12px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 56px;
  }

  .page-faq .tail-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group {
    margin-bottom: 48px;
  }

  .page-faq .faq-item summary {
    padding: 16px 18px;
    font-size: 16px;
  }

  .page-faq .faq-answer {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .diag-card,
  .page-faq .index-link,
  .page-faq .next-link,
  .page-faq .tail-links a {
    transition: none;
  }

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