.page-faq {
  --faq-line: rgba(216, 210, 198, .16);
  --faq-line-strong: rgba(216, 210, 198, .34);
  --faq-gap: clamp(20px, 3vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-warm);
  padding: clamp(26px, 4vw, 44px) 0 clamp(44px, 6vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(244, 241, 234, .045) 0 1px, transparent 1px 96px),
    linear-gradient(180deg, rgba(140, 28, 36, .34) 0%, rgba(140, 28, 36, 0) 58%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__crumb .breadcrumb__link {
  color: rgba(244, 241, 234, .68);
  text-decoration: none;
}

.page-faq .faq-hero__crumb .breadcrumb__link:hover,
.page-faq .faq-hero__crumb .breadcrumb__link:focus-visible {
  color: var(--c-sand);
}

.page-faq .faq-hero__crumb .breadcrumb__item {
  color: rgba(244, 241, 234, .5);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__eyebrow {
  color: var(--c-sand);
  letter-spacing: .22em;
  margin: 0 0 16px;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 60ch;
  color: rgba(244, 241, 234, .8);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  border-left: 3px solid var(--c-red);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero__side {
  position: relative;
  border-top: 1px solid var(--faq-line-strong);
  padding-top: 22px;
}

.page-faq .faq-hero__vnote {
  color: var(--c-sand);
  margin: 0 0 20px;
  writing-mode: vertical-rl;
  height: 116px;
  letter-spacing: .3em;
  display: none;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line);
}

.page-faq .faq-stat {
  background: var(--c-ink);
  padding: 16px 12px 18px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--c-neon);
  line-height: 1;
  padding-left: 12px;
  border-left: 2px solid var(--c-sand);
}

.page-faq .faq-stat__num em {
  font-style: normal;
  font-size: .5em;
  margin-left: 2px;
  color: rgba(244, 241, 234, .72);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: rgba(244, 241, 234, .62);
  padding-left: 14px;
}

/* ---------- 通用小标题 ---------- */
.page-faq .faq-head {
  max-width: 74ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-head .eyebrow {
  color: var(--c-red);
  letter-spacing: .2em;
  margin: 0 0 12px;
}

.page-faq .faq-head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--c-text);
}

.page-faq .faq-head__note {
  margin: 16px 0 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 62ch;
}

.page-faq .faq-head__note a {
  color: var(--c-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-head--split {
  max-width: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: end;
  border-bottom: 1px solid var(--c-hair);
  padding-bottom: 22px;
}

.page-faq .faq-head--split .faq-head__note {
  margin: 0;
}

.page-faq .faq-head--dark .section-title {
  color: var(--c-warm);
}

.page-faq .faq-head--dark .faq-head__note {
  color: rgba(244, 241, 234, .66);
}

.page-faq .faq-head--dark .eyebrow {
  color: var(--c-sand);
}

.page-faq .faq-head--dark .faq-head__note a {
  color: var(--c-neon);
}

.page-faq .faq-head--dark {
  border-bottom-color: var(--faq-line);
}

/* ---------- 三条路径 ---------- */
.page-faq .faq-paths {
  background: var(--c-warm);
}

.page-faq .faq-paths__rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .path-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-hair);
  border-top: 3px solid var(--c-red);
  box-shadow: var(--shadow-1);
  padding: clamp(22px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .path-card--b {
  border-top-color: var(--c-sand);
}

.page-faq .path-card--c {
  border-top-color: var(--c-slate);
}

.page-faq .path-card__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1;
  color: var(--c-hair);
  letter-spacing: -.04em;
}

.page-faq .path-card--a .path-card__idx { color: rgba(140, 28, 36, .22); }
.page-faq .path-card--b .path-card__idx { color: rgba(201, 162, 84, .36); }
.page-faq .path-card--c .path-card__idx { color: rgba(74, 98, 114, .3); }

.page-faq .path-card__kind {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-muted);
}

.page-faq .path-card__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.35;
}

.page-faq .path-card__for {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-faq .path-card__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-red);
  padding-top: 12px;
  border-top: 1px dashed var(--c-hair);
}

.page-faq .path-card__first {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: decimal;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text);
}

.page-faq .path-card__first li::marker {
  color: var(--c-sand);
  font-family: var(--font-mono);
  font-weight: 700;
}

.page-faq .path-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  padding: 9px 16px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 52px) 0 0;
}

.page-faq .faq-figure .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--c-graphite);
}

.page-faq .faq-figure .media__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
  border-left: 2px solid var(--c-sand);
  padding-left: 12px;
  max-width: 78ch;
}

.page-faq .faq-figure--fields .media__cap {
  border-left-color: var(--c-red);
}

/* ---------- 新手入门 ---------- */
.page-faq .faq-newbie {
  background: #fff;
}

.page-faq .faq-newbie__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-faq .faq-sub {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-ink);
  display: inline-block;
}

.page-faq .faq-newbie__right .faq-sub {
  border-bottom-color: var(--c-red);
}

/* ---------- 步骤列表 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-faq .steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-hair);
}

.page-faq .steps__item:first-child {
  border-top: 1px solid var(--c-hair);
}

.page-faq .steps__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-red);
  background: rgba(200, 240, 60, .5);
  border: 1px solid rgba(22, 24, 28, .12);
  padding: 2px 7px;
  height: fit-content;
  letter-spacing: .02em;
}

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

.page-faq .steps__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.55;
}

.page-faq .steps__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 字段读法 ---------- */
.page-faq .faq-fields {
  background: var(--c-warm);
}

.page-faq .faq-fields__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-hair);
  border: 1px solid var(--c-hair);
}

.page-faq .faq-read {
  background: #fff;
  padding: clamp(22px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-read__tag {
  align-self: flex-start;
}

.page-faq .faq-read__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--c-text);
}

.page-faq .faq-read__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-faq .faq-read__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px dashed var(--c-hair);
  padding-top: 14px;
}

.page-faq .faq-read__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-text);
}

.page-faq .faq-read__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--c-sand);
}

/* ---------- 桌面端技巧 ---------- */
.page-faq .faq-desktop {
  background: var(--c-ink);
  color: var(--c-warm);
}

.page-faq .faq-tips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .tip {
  background: var(--c-graphite);
  padding: clamp(22px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background .25s var(--ease), transform .25s var(--ease);
}

.page-faq .tip:hover {
  background: #333840;
}

.page-faq .tip__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-neon);
  border: 1px solid rgba(200, 240, 60, .4);
  width: fit-content;
  padding: 3px 9px;
}

.page-faq .tip__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--c-warm);
}

.page-faq .tip__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 241, 234, .74);
}

.page-faq .tip__scene {
  margin: auto 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-sand);
  border-top: 1px solid var(--faq-line);
  padding-top: 12px;
}

/* ---------- 企业接入 ---------- */
.page-faq .faq-enterprise {
  background: #fff;
}

.page-faq .faq-enterprise__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 44px);
  align-items: start;
}

.page-faq .steps--enterprise .steps__item {
  border-bottom-color: var(--c-hair);
}

.page-faq .faq-enterprise__aside {
  background: var(--c-warm);
  border: 1px solid var(--c-hair);
  border-left: 3px solid var(--c-slate);
  padding: clamp(22px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-enterprise__aside .eyebrow {
  color: var(--c-slate);
  letter-spacing: .18em;
  margin: 0;
}

.page-faq .faq-enterprise__stat {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text);
  padding-left: 12px;
  border-left: 2px solid var(--c-hair);
}

.page-faq .faq-enterprise__stat .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  color: var(--c-red);
  margin-right: 4px;
}

.page-faq .faq-enterprise__btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-faq .faq-enterprise__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-qa {
  background: var(--c-ink);
  color: var(--c-warm);
}

.page-faq .qa-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 4vw, 48px);
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-group__label {
  border-top: 2px solid var(--c-sand);
  padding-top: 12px;
}

.page-faq .faq-group__labeltext {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .16em;
  color: var(--c-sand);
}

.page-faq .faq-group__items {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .expand {
  background: var(--c-ink);
}

.page-faq .expand__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 18px;
  background: transparent;
  border: 0;
  color: var(--c-warm);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease);
}

.page-faq .expand__trigger:hover {
  background: rgba(201, 162, 84, .1);
}

.page-faq .expand__trigger:hover .expand__q {
  color: var(--c-neon);
}

.page-faq .expand__trigger:focus-visible {
  outline: 2px solid var(--c-sand);
  outline-offset: -2px;
}

.page-faq .expand__mark {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  position: relative;
  border: 1px solid var(--c-sand);
}

.page-faq .expand__mark::before,
.page-faq .expand__mark::after {
  content: "";
  position: absolute;
  background: var(--c-sand);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.page-faq .expand__mark::before {
  left: 3px;
  right: 3px;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .expand__mark::after {
  top: 3px;
  bottom: 3px;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .expand__trigger[aria-expanded="true"] .expand__mark {
  background: rgba(200, 240, 60, .14);
  border-color: var(--c-neon);
}

.page-faq .expand__trigger[aria-expanded="true"] .expand__mark::before,
.page-faq .expand__trigger[aria-expanded="true"] .expand__mark::after {
  background: var(--c-neon);
}

.page-faq .expand__trigger[aria-expanded="true"] .expand__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .expand__q {
  transition: color .22s var(--ease);
}

.page-faq .expand__panel {
  overflow: hidden;
  height: 0;
}

.page-faq .expand__body {
  padding: 4px 18px 22px 46px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .expand__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(244, 241, 234, .74);
}

.page-faq .expand__body a {
  color: var(--c-neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 结尾 ---------- */
.page-faq .faq-next {
  background: var(--c-warm);
  text-align: left;
}

.page-faq .faq-next .eyebrow {
  color: var(--c-red);
  letter-spacing: .2em;
  margin: 0 0 12px;
}

.page-faq .faq-next .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.28;
  color: var(--c-text);
}

.page-faq .faq-next__text {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-muted);
}

.page-faq .faq-next__text a {
  color: var(--c-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-paths__rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-paths__rail .path-card--c {
    grid-column: 1 / -1;
  }

  .page-faq .faq-fields__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-read--wide {
    grid-column: 1 / -1;
  }

  .page-faq .faq-tips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-tips .tip:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: clamp(36px, 4vw, 64px);
    align-items: end;
  }

  .page-faq .faq-hero__vnote {
    display: block;
    position: absolute;
    right: 0;
    top: 0;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: 1fr;
    background: transparent;
    border-top: 1px solid var(--faq-line-strong);
  }

  .page-faq .faq-stat {
    padding: 14px 0;
    border-bottom: 1px solid var(--faq-line);
  }

  .page-faq .faq-stat__num {
    padding-left: 14px;
  }

  .page-faq .faq-head--split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-paths__rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
  }

  .page-faq .faq-paths__rail .path-card--c {
    grid-column: auto;
  }

  .page-faq .path-card--b {
    margin-top: 28px;
  }

  .page-faq .path-card--c {
    margin-top: 14px;
  }

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

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

  .page-faq .faq-tips .tip:last-child {
    grid-column: auto;
  }

  .page-faq .faq-enterprise__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-group {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 24px;
  }

  .page-faq .faq-group__label {
    border-top: 0;
    padding-top: 0;
    border-right: 1px solid var(--faq-line);
    padding-right: 14px;
  }

  .page-faq .faq-group__labeltext {
    writing-mode: vertical-rl;
    height: 84px;
    letter-spacing: .34em;
  }

  .page-faq .faq-figure--fields {
    max-width: 78%;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .tip,
  .page-faq .expand__trigger,
  .page-faq .expand__q,
  .page-faq .expand__mark::before,
  .page-faq .expand__mark::after {
    transition: none;
  }
}
<<<END>>>