.page-faq {
  --faq-rail-w: 244px;
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-line-dash: rgba(154, 169, 181, 0.3);
  --faq-body: rgba(244, 247, 248, 0.78);
  background: var(--night);
  color: var(--mist);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(24px, 4vw, 56px) var(--gutter) clamp(32px, 4.5vw, 64px);
  background:
    radial-gradient(circle at 84% 6%, rgba(46, 230, 200, 0.15), transparent 46%),
    radial-gradient(circle at 10% 94%, rgba(108, 154, 118, 0.2), transparent 54%),
    var(--night);
  border-bottom: 1px solid var(--faq-line-dash);
}

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

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  color: var(--silver);
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(154, 169, 181, 0.55);
}

.page-faq .breadcrumb-link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .breadcrumb-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .breadcrumb-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .breadcrumb-current {
  color: var(--mist);
}

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-title {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.16;
  letter-spacing: -0.005em;
  color: var(--mist);
}

.page-faq .faq-lede {
  margin: 0 0 24px;
  max-width: 48ch;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq .faq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-btn--primary {
  background: var(--orange);
  color: var(--ink);
}

.page-faq .faq-btn--primary:hover {
  background: #ff8340;
}

.page-faq .faq-btn--ghost {
  border-color: var(--line-strong);
  color: var(--mist);
  background: transparent;
}

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

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

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
  color: var(--silver);
}

.page-faq .faq-fact-num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--yellow);
  margin-right: 5px;
}

.page-faq .faq-hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--tunnel);
  aspect-ratio: 16 / 10;
  max-height: 380px;
}

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

.page-faq .faq-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(7, 17, 28, 0.08) 0%, rgba(7, 17, 28, 0.74) 100%);
  pointer-events: none;
}

.page-faq .faq-hero-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 1;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-faq .faq-hero-visual {
    max-height: none;
    min-height: 340px;
  }
}

/* ---------- 工作台栅格 ---------- */
.page-faq .faq-workbench {
  display: grid;
  gap: var(--faq-gap);
  max-width: 1220px;
  margin: 0 auto;
  padding: clamp(28px, 4vw, 56px) var(--gutter) clamp(48px, 7vw, 96px);
}

.page-faq .faq-stream {
  min-width: 0;
}

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

/* ---------- 左侧锚点栏 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--silver);
}

.page-faq .faq-rail-track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-rail-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--mist);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-rail-link:hover {
  border-color: var(--cyan);
  background: var(--glass-strong);
}

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

.page-faq .faq-rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

@media (max-width: 959px) {
  .page-faq .faq-rail-title {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-rail-track {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail-link {
    width: 100%;
    border-radius: var(--radius-sm);
    white-space: normal;
  }
}

/* 当前分组落到锚点时高亮 */
.page-faq:has(#faq-entry:target) .faq-rail-link[href="#faq-entry"],
.page-faq:has(#faq-index:target) .faq-rail-link[href="#faq-index"],
.page-faq:has(#faq-rank:target) .faq-rail-link[href="#faq-rank"],
.page-faq:has(#faq-lineup:target) .faq-rail-link[href="#faq-lineup"],
.page-faq:has(#faq-save:target) .faq-rail-link[href="#faq-save"],
.page-faq:has(#faq-service:target) .faq-rail-link[href="#faq-service"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-faq:has(#faq-entry:target) .faq-rail-link[href="#faq-entry"] .faq-rail-num,
.page-faq:has(#faq-index:target) .faq-rail-link[href="#faq-index"] .faq-rail-num,
.page-faq:has(#faq-rank:target) .faq-rail-link[href="#faq-rank"] .faq-rail-num,
.page-faq:has(#faq-lineup:target) .faq-rail-link[href="#faq-lineup"] .faq-rail-num,
.page-faq:has(#faq-save:target) .faq-rail-link[href="#faq-save"] .faq-rail-num,
.page-faq:has(#faq-service:target) .faq-rail-link[href="#faq-service"] .faq-rail-num {
  color: var(--ink);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 18px);
  margin-bottom: clamp(34px, 5vw, 60px);
  min-width: 0;
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line-dash);
  margin-bottom: 10px;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
  transition: color 0.2s ease;
}

.page-faq .faq-group:target .faq-group-num {
  color: var(--cyan);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.3;
  color: var(--mist);
}

.page-faq .faq-group-note {
  margin: 0 0 18px;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 问题手风琴 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(244, 247, 248, 0.04);
  margin-bottom: 12px;
  transition: border-color 0.22s ease, background-color 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--line-strong);
  background: rgba(244, 247, 248, 0.07);
}

.page-faq .faq-item[open] {
  border-color: rgba(46, 230, 200, 0.5);
  background: rgba(46, 230, 200, 0.07);
  box-shadow: 0 14px 32px -24px rgba(0, 0, 0, 0.9);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  font-size: clamp(15px, 1.5vw, 16.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

.page-faq .faq-q-mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.45;
  color: var(--orange);
  transition: transform 0.22s ease, color 0.22s ease;
}

.page-faq .faq-item[open] .faq-q-mark {
  transform: rotate(45deg);
  color: var(--cyan);
}

.page-faq .faq-a {
  padding: 0 18px 18px clamp(18px, 4vw, 44px);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body);
}

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

.page-faq .faq-a-link {
  display: inline-block;
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 200, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-a-link:hover {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

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

.page-faq .faq-item--lead .faq-q {
  font-size: clamp(16px, 1.7vw, 18px);
}

@media (min-width: 760px) {
  .page-faq .faq-item:nth-child(even) {
    margin-left: clamp(0px, 3.4vw, 40px);
  }
}

/* ---------- 索引读法展区 ---------- */
.page-faq .faq-index {
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius-xl);
  padding: clamp(20px, 3.6vw, 40px);
  border: 1px solid rgba(17, 24, 32, 0.08);
}

.page-faq .faq-index .faq-group-head {
  border-top-color: rgba(17, 24, 32, 0.16);
  margin-bottom: 14px;
}

.page-faq .faq-index .faq-group-title {
  color: var(--ink);
}

.page-faq .faq-index-layout {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-index-rows {
  position: relative;
  min-width: 0;
  padding-left: 16px;
}

.page-faq .faq-index-rows::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--grass) 100%);
  opacity: 0.6;
}

.page-faq .faq-index-intro {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: #3d4a54;
}

.page-faq .faq-index-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 13px 12px;
  border-radius: var(--radius-sm);
  border-bottom: 1px dashed rgba(17, 24, 32, 0.18);
  transition: background-color 0.2s ease;
}

.page-faq .faq-index-row:last-child {
  border-bottom: 0;
}

.page-faq .faq-index-row:hover,
.page-faq .faq-index-row:focus-visible {
  background: rgba(255, 107, 26, 0.13);
  outline: none;
}

.page-faq .faq-index-row:focus-visible {
  box-shadow: inset 0 0 0 2px var(--orange);
}

.page-faq .faq-index-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-faq .faq-index-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-index-note {
  grid-column: 1 / -1;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.65;
  color: #4a5a66;
  border-left: 2px solid var(--cyan);
  transition: max-height 0.24s ease, opacity 0.24s ease, padding-left 0.24s ease, margin-top 0.24s ease;
}

.page-faq .faq-index-row:hover .faq-index-note,
.page-faq .faq-index-row:focus-visible .faq-index-note {
  max-height: 90px;
  opacity: 1;
  padding-left: 10px;
  margin-top: 6px;
}

.page-faq .faq-index-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--night);
}

.page-faq .faq-index-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-index-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
  background: rgba(7, 17, 28, 0.9);
}

@media (min-width: 880px) {
  .page-faq .faq-index-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

/* ---------- 联系条 ---------- */
.page-faq .faq-contact-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(100deg, rgba(255, 107, 26, 0.14), rgba(46, 230, 200, 0.08));
}

.page-faq .faq-contact-strip p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 247, 248, 0.84);
}

.page-faq .faq-contact-strip a {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 200, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-contact-strip a:hover {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

.page-faq .faq-contact-strip a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition: none !important;
  }
}
<<<END>>>