.page-faq {
  --faq-rail-w: 250px;
  --faq-hair: rgba(244, 235, 221, .14);
  --faq-hair-strong: rgba(244, 235, 221, .28);
  --faq-ink-soft: rgba(18, 20, 23, .72);
  padding: clamp(16px, 2.4vw, 32px) 0 clamp(56px, 7vw, 110px);
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: clamp(16px, 2.2vw, 28px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 46px);
}

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

/* ---------- 侧边主题索引 ---------- */
.page-faq .faq-rail {
  padding-top: 14px;
  border-top: 1px solid var(--faq-hair);
  min-width: 0;
}

.page-faq .faq-rail__title {
  margin: 8px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  padding: 9px 13px;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: rgba(244, 235, 221, .06);
  color: rgba(244, 235, 221, .74);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1;
  text-align: left;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-filter:hover,
.page-faq .faq-filter:focus-visible {
  color: var(--cyan);
  border-color: var(--faq-hair-strong);
  outline: none;
}

.page-faq .faq-filter[data-active="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-rail__note {
  margin: 16px 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 235, 221, .6);
}

.page-faq .faq-rail__note strong {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--cyan);
}

.page-faq .faq-rail__link {
  display: inline-flex;
  font-size: 12px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 66px);
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: -.005em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.78;
  color: rgba(244, 235, 221, .76);
}

.page-faq .faq-figures {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 2.4vw, 34px);
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-figures > div {
  display: flex;
  flex-direction: column-reverse;
  gap: 5px;
}

.page-faq .faq-figures dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: rgba(244, 235, 221, .5);
}

.page-faq .faq-figures dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-faq .faq-hero__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  background: var(--ink-2);
  border: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-hero__media .media-frame__caption {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .05em;
  color: rgba(244, 235, 221, .66);
}

/* ---------- 问答卡 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: clamp(26px, 3.4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 1.5vw, 16px);
}

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

.page-faq .faq-card {
  background: var(--paper);
  color: var(--graphite);
  border-left: 3px solid rgba(18, 20, 23, .14);
  border-radius: 2px;
  overflow: hidden;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-card[open] {
  border-left-color: var(--cyan);
  box-shadow: 0 14px 34px rgba(4, 16, 31, .38);
}

.page-faq .faq-card > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(14px, 1.9vw, 20px) clamp(15px, 2.1vw, 24px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(16.5px, 1.5vw, 21px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--graphite);
}

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

.page-faq .faq-card > summary::-moz-list-bullet {
  list-style: none;
}

.page-faq .faq-card > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-data);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.2;
  color: rgba(18, 20, 23, .42);
  transition: color .18s var(--ease);
}

.page-faq .faq-card[open] > summary::after {
  content: "−";
  color: #0b7f6f;
}

.page-faq .faq-card > summary:focus-visible {
  outline: 2px solid var(--shot);
  outline-offset: -4px;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-tag {
  flex: none;
  margin-top: 3px;
  padding: 5px 7px;
  border-radius: 2px;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  line-height: 1;
}

.page-faq .faq-answer {
  display: grid;
  gap: 12px;
  padding: 0 clamp(15px, 2.1vw, 24px) clamp(18px, 2.2vw, 26px) calc(clamp(15px, 2.1vw, 24px) + 4px);
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

.page-faq .faq-answer p {
  margin: 0;
}

.page-faq .faq-answer__label {
  margin: 4px 0 -4px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(18, 20, 23, .46);
}

.page-faq .faq-answer a {
  color: #0b7f6f;
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-word;
}

/* 技能树式步骤链 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .04em;
}

.page-faq .faq-step p {
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-step strong {
  color: var(--graphite);
  font-weight: 600;
}

.page-faq .faq-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 14.5px;
  top: 40px;
  bottom: -4px;
  width: 1px;
  background: rgba(18, 20, 23, .18);
}

/* 状态条 */
.page-faq .faq-state {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 2px 0;
  padding: 10px 12px;
  background: rgba(13, 42, 71, .07);
  border-left: 2px solid var(--shot);
  font-family: var(--font-data);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-faq .faq-state__dot {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--shot);
  animation: faq-pulse 2.6s ease-in-out infinite;
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .32; }
}

/* 卡内配图 */
.page-faq .faq-figure {
  margin: 4px 0 0;
  border: 1px solid rgba(18, 20, 23, .14);
  background: var(--ink-2);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 8px 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .05em;
  line-height: 1.6;
  color: rgba(244, 235, 221, .7);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(34px, 4.4vw, 64px);
  padding: clamp(22px, 3vw, 40px);
  border: 1px solid var(--faq-hair-strong);
  border-radius: 3px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(43, 228, 197, .16), rgba(43, 228, 197, 0) 58%),
    linear-gradient(160deg, var(--ink-2), var(--night));
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 34px);
}

.page-faq .faq-contact h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(23px, 2.9vw, 34px);
  font-weight: 600;
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-contact__lede {
  margin: 0 0 20px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .74);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__label {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(244, 235, 221, .5);
}

.page-faq .faq-contact__value {
  display: block;
  margin-top: 4px;
  font-family: var(--font-data);
  font-size: clamp(15px, 1.7vw, 20px);
  line-height: 1.4;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-contact__value--text {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-contact__sublabel {
  color: rgba(244, 235, 221, .5);
}

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

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 235, 221, .8);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  border-radius: 1px;
}

.page-faq .faq-contact__extra {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 235, 221, .66);
}

.page-faq .faq-contact__extra a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 228, 197, .42);
}

/* ---------- 分类与更新 ---------- */
.page-faq .faq-taxonomy {
  margin-top: clamp(38px, 5vw, 68px);
}

.page-faq .faq-taxonomy h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-taxonomy > p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .72);
}

.page-faq .faq-cats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-cat {
  background: var(--ink);
  padding: clamp(14px, 1.8vw, 20px);
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-faq .faq-cat__num {
  font-family: var(--font-data);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--shot);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-cat__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.68;
  color: rgba(244, 235, 221, .62);
}

.page-faq .faq-taxonomy__more {
  margin-top: 16px;
  font-size: 14px;
  color: rgba(244, 235, 221, .72);
}

.page-faq .faq-taxonomy__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 228, 197, .4);
}

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

@media (min-width: 800px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

@media (min-width: 940px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    align-self: start;
    padding: 2px 0 2px 22px;
    border-top: none;
    border-left: 1px solid var(--faq-hair);
  }

  .page-faq .faq-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-state__dot {
    animation: none;
  }

  .page-faq .faq-card,
  .page-faq .faq-filter,
  .page-faq .faq-card > summary::after {
    transition: none;
  }
}
<<<END>>>