.page-faq {
  --faq-shadow: 0 16px 36px rgba(7, 43, 102, 0.12);
  background: var(--ub-paper);
  color: var(--ub-ink);
  font-family: var(--ub-font-body);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .breadcrumb {
  max-width: var(--ub-max);
  margin: 0 auto;
  padding: 16px var(--ub-gutter) 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  max-width: var(--ub-max);
  margin: clamp(14px, 3vw, 28px) auto 0;
  padding: 0 var(--ub-gutter);
  display: grid;
  gap: 18px;
}

.page-faq .faq-hero__main {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px);
  background: linear-gradient(158deg, var(--ub-deep) 0%, var(--ub-deep-dark) 100%);
  color: var(--ub-paper);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 0 100%);
}

.page-faq .faq-hero__main::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 190px;
  height: 190px;
  border-top: 2px solid rgba(0, 194, 168, 0.45);
  border-right: 2px solid rgba(232, 180, 90, 0.35);
  transform: rotate(-26deg);
  pointer-events: none;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(246, 241, 231, 0.72);
}

.page-faq .faq-hero__eyebrow .mono {
  color: var(--ub-gold);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--ub-font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.6vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ub-paper-light);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 36ch;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.86);
}

.page-faq .faq-hero__lead--sub {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(246, 241, 231, 0.66);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

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

.page-faq .scene-card {
  padding: 20px clamp(16px, 3vw, 24px);
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line);
  box-shadow: var(--faq-shadow);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .scene-card__title {
  margin: 0 0 6px;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--ub-deep);
}

.page-faq .scene-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .scene-card__item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px dashed var(--ub-line-soft);
}

.page-faq .scene-card__item:last-child {
  border-bottom: 0;
}

.page-faq .scene-card__idx {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ub-clay);
}

.page-faq .scene-card__name {
  display: block;
  font-family: var(--ub-font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ub-ink);
}

.page-faq .scene-card__desc {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ub-moss);
}

.page-faq .scene-card__note {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ub-violet);
}

.page-faq .scene-card__note .mono {
  color: var(--ub-clay);
}

/* ---------- 章节骨架 ---------- */
.page-faq .section {
  max-width: var(--ub-max);
  margin: 0 auto;
  padding: clamp(34px, 6vw, 72px) var(--ub-gutter) 0;
}

.page-faq .section__head {
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 2px solid var(--ub-deep);
}

.page-faq .section__num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ub-teal);
}

.page-faq .section__title {
  margin: 2px 0 0;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ub-deep);
}

.page-faq .section__note {
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ub-moss);
}

/* ---------- 分段切换 ---------- */
.page-faq .faq-tabs {
  margin-top: 22px;
}

.page-faq .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px;
  background: var(--ub-stone);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .tabs__tab {
  flex: 1 1 46%;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ub-ink);
  font-family: var(--ub-font-display);
  font-weight: 700;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: background 0.3s var(--ub-ease), color 0.3s var(--ub-ease), border-color 0.3s var(--ub-ease);
}

.page-faq .tabs__tab .mono {
  font-size: 12px;
  color: var(--ub-violet);
  transition: color 0.3s var(--ub-ease);
}

.page-faq .tabs__tab[aria-selected="true"] {
  background: var(--ub-gold);
  color: var(--ub-deep-dark);
  border-color: rgba(23, 32, 51, 0.22);
  box-shadow: inset 0 -3px 0 rgba(7, 43, 102, 0.22);
}

.page-faq .tabs__tab[aria-selected="true"] .mono {
  color: var(--ub-deep-dark);
}

.page-faq .tabs__tab:hover {
  border-color: rgba(23, 32, 51, 0.24);
}

.page-faq .tabs__tab:focus-visible {
  outline: 2px solid var(--ub-teal);
  outline-offset: 2px;
}

.page-faq .faq-tabs__panel {
  display: grid;
  gap: 10px;
  padding-top: 18px;
}

.page-faq .faq-tabs__panel[hidden] {
  display: none;
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa__list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .qa__item {
  padding: 0 clamp(14px, 2.6vw, 20px);
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line-soft);
  border-left: 3px solid var(--ub-teal);
  transition: border-color 0.3s var(--ub-ease), background 0.3s var(--ub-ease);
}

.page-faq .qa__item[open] {
  background: #fffdf8;
  border-left-color: var(--ub-gold);
}

.page-faq .qa__q {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--ub-font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ub-ink);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  padding-left: 8px;
  font-family: var(--ub-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--ub-teal);
}

.page-faq .qa__item[open] .qa__q::after {
  content: "−";
  color: var(--ub-clay);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--ub-teal);
  outline-offset: 3px;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  font-family: var(--ub-font-mono);
  font-size: 12px;
  color: var(--ub-violet);
}

.page-faq .qa__a {
  padding: 0 0 15px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(23, 32, 51, 0.86);
}

.page-faq .qa__a p {
  margin: 0 0 8px;
}

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

.page-faq .qa__a a {
  color: var(--ub-deep);
  text-decoration: underline;
  text-decoration-color: var(--ub-teal);
  text-underline-offset: 3px;
}

/* ---------- 小屏入口 ---------- */
.page-faq .faq-screen__grid {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

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

.page-faq .media-frame {
  margin: 0;
  background: var(--ub-stone);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-faq .media-frame img {
  display: block;
  width: 100%;
}

.page-faq .media-frame--tall img {
  aspect-ratio: 5 / 6;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  margin: 0;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ub-moss);
  background: var(--ub-stone);
}

.page-faq .faq-screen__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(23, 32, 51, 0.84);
}

.page-faq .mini-screen {
  margin: 18px 0 0;
  padding: 16px;
  max-width: 260px;
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line);
}

.page-faq .mini-screen svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .mini-screen__caption {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--ub-moss);
}

/* ---------- 版本与批次 ---------- */
.page-faq .faq-batch {
  margin-top: 22px;
  padding: clamp(22px, 4.4vw, 40px);
  background: linear-gradient(150deg, var(--ub-deep) 0%, var(--ub-deep-dark) 100%);
  color: var(--ub-paper);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

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

.page-faq .batch-card {
  padding: 16px;
  background: rgba(246, 241, 231, 0.06);
  border: 1px solid var(--ub-line-light);
}

.page-faq .batch-card__code {
  margin: 0;
  font-family: var(--ub-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ub-gold);
}

.page-faq .batch-card__title {
  margin: 6px 0 6px;
  font-family: var(--ub-font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ub-paper-light);
}

.page-faq .batch-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(246, 241, 231, 0.78);
}

.page-faq .faq-batch__qa .qa__item {
  background: rgba(246, 241, 231, 0.05);
  border-color: var(--ub-line-light);
  border-left-color: var(--ub-teal);
}

.page-faq .faq-batch__qa .qa__item[open] {
  background: rgba(246, 241, 231, 0.1);
  border-left-color: var(--ub-gold);
}

.page-faq .faq-batch__qa .qa__q {
  color: var(--ub-paper-light);
}

.page-faq .faq-batch__qa .qa__num {
  color: rgba(232, 180, 90, 0.85);
}

.page-faq .faq-batch__qa .qa__a {
  color: rgba(246, 241, 231, 0.82);
}

/* ---------- 使用指南 ---------- */
.page-faq .guide-grid {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .guide-card {
  padding: 16px;
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line);
  border-left: 3px solid var(--ub-teal);
}

.page-faq .guide-card__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ub-clay);
}

.page-faq .guide-card__title {
  margin: 8px 0 6px;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--ub-deep);
}

.page-faq .guide-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(23, 32, 51, 0.8);
}

/* ---------- 反馈 ---------- */
.page-faq .steps {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .step-card {
  padding: 18px;
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line);
  border-top: 3px solid var(--ub-gold);
}

.page-faq .step-card__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ub-clay);
}

.page-faq .step-card__title {
  margin: 8px 0 6px;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--ub-deep);
}

.page-faq .step-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(23, 32, 51, 0.8);
}

.page-faq .faq-report__grid {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.page-faq .faq-report__media img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-report__lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(23, 32, 51, 0.84);
}

.page-faq .faq-report__lead .mono {
  color: var(--ub-deep);
  font-size: 14px;
}

.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .check-list__item {
  position: relative;
  padding: 9px 12px 9px 34px;
  background: var(--ub-stone);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ub-ink);
}

.page-faq .check-list__item::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 16px;
  width: 9px;
  height: 9px;
  background: var(--ub-teal);
  transform: rotate(45deg);
}

.page-faq .faq-report__note {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--ub-clay);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ub-moss);
}

.page-faq .faq-report__note a {
  color: var(--ub-deep);
  text-decoration: underline;
  text-decoration-color: var(--ub-teal);
  text-underline-offset: 3px;
}

/* ---------- 收藏清单 ---------- */
.page-faq .save-grid {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .save-item {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 12px;
  text-decoration: none;
  color: var(--ub-ink);
  background: var(--ub-paper-light);
  border: 1px solid var(--ub-line);
  transition: transform 0.3s var(--ub-ease), border-color 0.3s var(--ub-ease), background 0.3s var(--ub-ease);
}

.page-faq .save-item:hover {
  transform: translateY(-4px);
  border-color: var(--ub-gold);
  background: #fffdf8;
}

.page-faq .save-item:focus-visible {
  outline: 2px solid var(--ub-teal);
  outline-offset: 2px;
}

.page-faq .save-item__num {
  font-size: 12px;
  color: var(--ub-violet);
}

.page-faq .save-item__label {
  font-family: var(--ub-font-display);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.4;
}

/* ---------- 批次变化 ---------- */
.page-faq .batch-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
}

.page-faq .batch-list__item {
  position: relative;
  padding: 16px 0 16px 24px;
  border-bottom: 1px solid var(--ub-line-soft);
}

.page-faq .batch-list__item:first-child {
  border-top: 1px solid var(--ub-line-soft);
}

.page-faq .batch-list__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 23px;
  width: 9px;
  height: 9px;
  background: var(--ub-teal);
  transform: rotate(45deg);
}

.page-faq .batch-list__title {
  margin: 0 0 4px;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--ub-deep);
}

.page-faq .batch-list__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(23, 32, 51, 0.82);
}

/* ---------- 收尾入口 ---------- */
.page-faq .faq-cta {
  max-width: var(--ub-max);
  margin: clamp(34px, 6vw, 68px) auto 0;
  padding: 0 var(--ub-gutter);
}

.page-faq .faq-cta__box {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 38px);
  background: var(--ub-stone);
  border-top: 3px solid var(--ub-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--ub-font-display);
  font-weight: 800;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.25;
  color: var(--ub-deep);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(23, 32, 51, 0.84);
}

.page-faq .faq-cta__text .mono {
  color: var(--ub-deep);
  font-size: 14px;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .page-faq .tabs__tab {
    flex: 1 1 auto;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: start;
    gap: 0;
  }

  .page-faq .faq-hero__aside {
    position: relative;
    z-index: 2;
    margin: 62px 0 0 -38px;
  }

  .page-faq .faq-screen__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
    gap: 38px;
  }

  .page-faq .faq-report__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 28px;
  }

  .page-faq .save-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .page-faq .guide-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .mini-screen {
    max-width: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .save-item,
  .page-faq .tabs__tab,
  .page-faq .qa__item {
    transition: none;
  }

  .page-faq .save-item:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>