.page-faq {
  --faq-gap: clamp(20px, 3vw, 34px);
  --faq-line: 1px solid var(--line-dark);
  background:
    radial-gradient(110% 70% at 100% 0%, rgba(53, 242, 208, 0.08), transparent 62%),
    radial-gradient(90% 60% at 0% 100%, rgba(255, 106, 43, 0.06), transparent 60%),
    var(--ink-900);
  color: var(--steel-bright);
  padding-block: clamp(18px, 2.6vw, 30px) clamp(48px, 7vw, 88px);
}

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

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--steel);
  margin-bottom: clamp(14px, 2vw, 22px);
}
.page-faq .crumbs a {
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
  padding-bottom: 1px;
}
.page-faq .crumbs a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
.page-faq .crumbs [aria-current="page"] { color: var(--paper-hi); }

/* 首屏问答看板 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  background: var(--paper);
  color: var(--ink-body);
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-panel);
  padding: clamp(18px, 3vw, 38px);
  box-shadow: 0 26px 60px -44px rgba(0, 0, 0, 0.95);
}
.page-faq .faq-hero .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #a03a12;
  margin: 0 0 10px;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 4.8vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink-body);
  margin: 0 0 14px;
}
.page-faq .faq-hero .lede {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ink-body-soft);
  margin: 0 0 18px;
  max-width: 60ch;
}
.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.page-faq .faq-hero__facts li {
  font-size: 13px;
  line-height: 1.5;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  background: var(--paper-hi);
  border: 1px solid var(--line-paper);
  color: var(--ink-body-soft);
}
.page-faq .faq-hero__facts .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #a03a12;
  margin-right: 4px;
}
.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--radius-soft);
  overflow: hidden;
  border: 1px solid var(--line-paper);
  background: var(--ink-800);
}
.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}
.page-faq .media-cap {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-body-soft);
  padding: 10px 14px;
  background: var(--paper-hi);
  margin: 0;
  border-top: 1px solid var(--line-paper);
}
.page-faq .faq-hero__figure .media-cap { color: var(--steel-bright); background: var(--ink-800); border-top: 1px solid var(--line-dark); }

/* 主题索引条 */
.page-faq .faq-index { margin-top: var(--faq-gap); }
.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--steel);
  margin: 0 0 12px;
}
.page-faq .faq-index-list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(180px, 1fr);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 10px;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-index-link {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 16px;
  min-height: 44px;
  text-decoration: none;
  background: var(--ink-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-soft);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: var(--ink-700);
}
.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-faq .faq-index-name {
  font-size: 14.5px;
  line-height: 1.45;
  color: var(--paper-hi);
}

/* 关键词过滤 */
.page-faq .faq-tools { margin-top: var(--faq-gap); }
.page-faq .faq-tools .filter-input {
  width: 100%;
  min-height: 44px;
  background: var(--ink-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-soft);
  color: var(--paper-hi);
  padding: 0 14px;
  font-family: var(--font-body);
  font-size: 15px;
}
.page-faq .faq-tools .filter-input::placeholder { color: var(--steel); }
.page-faq .faq-tools .filter-input:focus { border-color: var(--cyan); }
.page-faq .faq-tools .filter-status {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--steel);
}

/* 左侧轨道 + 内容流 */
.page-faq .faq-body {
  margin-top: var(--faq-gap);
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-rail {
  border-left: 2px solid var(--line-cyan);
  padding-left: 14px;
}
.page-faq .faq-rail .rail-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
  margin: 0 0 10px;
  text-transform: uppercase;
}
.page-faq .faq-rail .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding-bottom: 6px;
}
.page-faq .faq-rail-link {
  display: block;
  white-space: nowrap;
  scroll-snap-align: start;
  padding: 10px 12px;
  font-size: 14px;
  text-decoration: none;
  color: var(--steel);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .faq-rail-link:hover { color: var(--paper-hi); border-color: rgba(53, 242, 208, 0.5); }
.page-faq .faq-rail-link[aria-current="true"] {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-faq .faq-rail-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
  display: none;
}
.page-faq .faq-rail-note a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 43, 0.5);
}

/* 章节 */
.page-faq .faq-section {
  padding-block: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line-dark);
}
.page-faq .faq-section:first-child { border-top: 0; padding-top: 0; }
.page-faq .faq-section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}
.page-faq .faq-section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}
.page-faq .faq-section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 2.9vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--paper-hi);
}
.page-faq .faq-section-lede {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
  max-width: 62ch;
}

/* 新手路径纸面板 */
.page-faq .start-panel {
  background: var(--paper);
  color: var(--ink-body);
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-panel);
  padding: clamp(16px, 2.6vw, 26px);
}
.page-faq .start-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .start-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  background: var(--paper-hi);
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-soft);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .start-step:hover { transform: translateY(-2px); border-color: rgba(200, 65, 26, 0.4); }
.page-faq .start-step-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper-hi);
  background: var(--ink-body);
  border-radius: 8px 8px 8px 2px;
  display: grid;
  place-items: center;
  height: 34px;
}
.page-faq .start-step h3 {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--ink-body);
}
.page-faq .start-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-body-soft);
}
.page-faq .start-figure {
  margin: 0 0 18px;
  border-radius: var(--radius-soft);
  overflow: hidden;
  border: 1px solid var(--line-paper);
  background: var(--ink-800);
}
.page-faq .start-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq .start-figure .media-cap { background: var(--paper-hi); color: var(--ink-body-soft); }
.page-faq .start-next { margin: 0; }

/* 折叠问答 */
.page-faq .qa {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-soft);
  padding: 0 16px;
  margin-bottom: 10px;
  transition: border-color 0.2s var(--ease);
}
.page-faq .qa:hover { border-color: rgba(53, 242, 208, 0.45); }
.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 3px;
  background: transparent;
  transition: background 0.2s var(--ease);
}
.page-faq .qa[open]::before { background: var(--cyan); }
.page-faq .qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  min-height: 44px;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper-hi);
}
.page-faq .qa summary::-webkit-details-marker { display: none; }
.page-faq .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--cyan);
}
.page-faq .qa[open] summary::after { content: "−"; }
.page-faq .qa__a {
  padding: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel-bright);
}
.page-faq .qa__a p { margin: 0; }
.page-faq .qa-next {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.page-faq .qa-next::after {
  content: "→";
  font-family: var(--font-mono);
}
.page-faq .qa-next:hover { border-bottom-color: var(--orange); }

/* 会员档位 */
.page-faq .tier-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}
.page-faq .tier {
  padding: 16px 18px;
  border: var(--faq-line);
  border-left: 3px solid var(--green);
  border-radius: var(--radius-soft);
  background: linear-gradient(135deg, rgba(88, 214, 141, 0.08), rgba(16, 31, 51, 0.9) 55%);
}
.page-faq .tier h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--paper-hi);
}
.page-faq .tier p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel-bright);
}

/* 联系卡片 */
.page-faq .contact-card {
  margin-top: 18px;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--ink-700);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-panel);
}
.page-faq .contact-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper-hi);
}
.page-faq .contact-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.6;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-dark);
}
.page-faq .contact-row:last-child { border-bottom: 0; padding-bottom: 0; }
.page-faq .contact-label {
  min-width: 72px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--steel);
}
.page-faq .contact-row .mono {
  font-family: var(--font-mono);
  color: var(--paper-hi);
  word-break: break-word;
}
.page-faq .contact-note {
  margin: 8px 0 0;
  font-size: 12.8px;
  line-height: 1.7;
  color: var(--steel);
}
.page-faq .contact-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.45);
}

/* 平板及桌面 */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }
  .page-faq .start-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .tier-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .faq-index-list {
    grid-auto-flow: row;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 214px minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }
  .page-faq .faq-rail .rail-list {
    flex-direction: column;
    overflow: visible;
    gap: 6px;
  }
  .page-faq .faq-rail-link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    padding: 9px 12px;
    white-space: normal;
  }
  .page-faq .faq-rail-link:hover { background: rgba(53, 242, 208, 0.06); }
  .page-faq .faq-rail-link[aria-current="true"] {
    color: var(--cyan);
    background: rgba(53, 242, 208, 0.08);
    border-left-color: var(--cyan);
  }
  .page-faq .faq-rail-note { display: block; }
}

@media (min-width: 1120px) {
  .page-faq .faq-hero { padding: 42px; }
  .page-faq .qa { padding: 0 22px; }
  .page-faq .qa summary { font-size: 16.5px; }
  .page-faq .qa__a { font-size: 15px; }
}
<<<END>>>