.page-faq {
  --faq-gap: clamp(1.2rem, 3vw, 2rem);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.8;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 5vw, 2.4rem) 0 clamp(2rem, 6vw, 3.4rem);
  background: linear-gradient(162deg, var(--paper-deep) 0%, var(--paper) 64%);
  border-bottom: var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: 58%;
  height: 168%;
  background: var(--warm-gray);
  opacity: 0.42;
  transform: skewX(-15deg);
  pointer-events: none;
}

.page-faq .faq-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 1.1rem;
  font-size: 0.82rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--terracotta-deep);
}

.page-faq h1 {
  margin: 0 0 0.9rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 6vw, 3.2rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-hero .lede {
  margin: 0 0 1.5rem;
  max-width: 32em;
  font-size: clamp(1rem, 2.6vw, 1.1rem);
  line-height: 1.85;
  color: var(--frame);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-faq .faq-hero__note {
  margin-top: 1.6rem;
  padding: 1rem 1.1rem;
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__note-label {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--terracotta);
}

.page-faq .faq-hero__note ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.94rem;
  color: var(--ink);
}

.page-faq .faq-hero__note li + li {
  margin-top: 0.35rem;
}

/* 主体布局 */
.page-faq .faq-layout {
  padding: clamp(1.6rem, 5vw, 2.8rem) 0 clamp(2.4rem, 7vw, 4.5rem);
}

.page-faq .faq-toc-wrap {
  margin-bottom: 1.6rem;
}

.page-faq .faq-toc {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc__label {
  display: none;
}

.page-faq .faq-toc .toc__link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  background: var(--paper-deep);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--frame);
  text-decoration: none;
  white-space: nowrap;
}

.page-faq .faq-toc .toc__link.is-active {
  border-color: var(--ink-green);
  background: var(--ink-green);
  color: var(--paper);
}

/* 章节 */
.page-faq [data-chapter] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-section {
  margin-bottom: clamp(2.2rem, 6vw, 3.6rem);
}

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

.page-faq .faq-section .section-head {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  margin-bottom: 0.55rem;
}

.page-faq .faq-section .section-index {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  font-weight: 700;
  color: var(--terracotta);
}

.page-faq .faq-section .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.35rem, 4.4vw, 2rem);
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .faq-section__lede {
  max-width: 40em;
  margin: 0 0 1.4rem;
  font-size: 0.98rem;
  color: var(--frame);
}

/* 准备区 */
.page-faq .prep-grid {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.4rem;
}

.page-faq .prep-item {
  padding: 0.95rem 1rem;
  border: var(--line);
  background: var(--paper-deep);
}

.page-faq .prep-item__key {
  margin: 0 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--terracotta-deep);
}

.page-faq .prep-item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-faq .prep-item p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--ink);
}

.page-faq .prep-item a,
.page-faq .save-item a,
.page-faq .faq-item__body a,
.page-faq .help-card a {
  color: var(--ink-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .prep-item a:hover,
.page-faq .save-item a:hover,
.page-faq .faq-item__body a:hover {
  color: var(--terracotta-deep);
}

.page-faq .path-compare {
  display: grid;
  gap: 0.9rem;
}

.page-faq .path-card {
  padding: 0.95rem 1rem;
  border: var(--line);
  border-left: 6px solid var(--moss);
  background: var(--paper);
}

.page-faq .path-card--desktop {
  border-left-color: var(--ink-green);
}

.page-faq .path-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-faq .path-card ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.93rem;
  color: var(--ink);
}

.page-faq .path-card li + li {
  margin-top: 0.35rem;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 1.4rem;
}

.page-faq .faq-figure .media-frame {
  margin-bottom: 0.5rem;
  border: var(--line);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--rock);
}

/* 步骤卡 */
.page-faq .step-list {
  display: grid;
  gap: 0.9rem;
}

.page-faq .step-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  padding: 1rem 1.05rem;
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .step-card__num {
  padding-right: 0.7rem;
  border-right: 2px solid var(--warm-gray);
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 5.5vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--terracotta);
}

.page-faq .step-card__body {
  min-width: 0;
}

.page-faq .step-card__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink);
}

.page-faq .step-card__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink);
}

.page-faq .step-card__hint {
  margin: 0.5rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--ink-green);
}

/* 登录与收藏 */
.page-faq .save-grid {
  display: grid;
  gap: 1.3rem;
}

.page-faq .save-list {
  display: grid;
  gap: 0.9rem;
}

.page-faq .save-item {
  padding-top: 0.7rem;
  border-top: 2px solid var(--warm-gray);
}

.page-faq .save-item h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-faq .save-item p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--ink);
}

.page-faq .save-figure {
  margin: 0;
}

.page-faq .save-figure .media-frame {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--paper-deep);
}

.page-faq .save-figure img {
  height: 100%;
}

/* 常见问题 */
.page-faq .faq-group {
  margin-bottom: 1.5rem;
}

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

.page-faq .faq-group__title {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding: 0.24rem 0.7rem;
  background: var(--ink-green);
  color: var(--paper);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--warm-gray);
}

.page-faq .faq-item summary {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.85rem 0;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--terracotta);
}

.page-faq .faq-item[open] summary::after {
  content: "\2013";
}

.page-faq .faq-item summary:hover {
  color: var(--terracotta-deep);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--terracotta);
  outline-offset: 3px;
}

.page-faq .faq-item__body {
  padding: 0 0 1rem;
  font-size: 0.94rem;
  color: var(--ink);
}

.page-faq .faq-item__body p {
  margin: 0 0 0.6rem;
}

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

/* 联系区 */
.page-faq .help-card {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.2rem, 4vw, 2rem);
  border: var(--line);
  background: var(--ink-green);
  color: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .help-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.4vw, 1.55rem);
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .help-card p {
  margin: 0 0 0.9rem;
  font-size: 0.94rem;
  color: var(--paper);
}

.page-faq .help-card__contacts {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

.page-faq .help-card .contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.6rem;
  border-top: 1px solid rgba(244, 239, 230, 0.28);
}

.page-faq .help-card .contact-key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--terracotta-soft);
}

.page-faq .help-card .contact-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .help-card .btn {
  border-color: var(--paper);
  color: var(--paper);
  background: transparent;
  box-shadow: none;
}

.page-faq .help-card .btn--solid {
  border-color: var(--terracotta);
  background: var(--terracotta);
  color: var(--paper);
}

.page-faq .help-card .btn:hover {
  background: var(--paper);
  color: var(--ink-green);
  border-color: var(--paper);
}

.page-faq .help-card .copy-btn {
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.page-faq .help-card__side p {
  margin-bottom: 0.7rem;
}

.page-faq .help-card__side .btn {
  display: inline-block;
}

.page-faq .help-card__side .help-card__note {
  margin: 0.9rem 0 0;
  font-size: 0.86rem;
  color: var(--terracotta-soft);
}

.page-faq .help-card a {
  color: var(--paper);
  text-decoration-color: var(--terracotta-soft);
}

.page-faq .help-card a:hover {
  color: var(--terracotta-soft);
}

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(1.6rem, 4vw, 3rem);
  }

  .page-faq .faq-hero__note {
    margin-top: 0.4rem;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.8rem, 4vw, 3.2rem);
  }

  .page-faq .faq-toc-wrap {
    position: sticky;
    top: calc(var(--header-h) + 1.2rem);
    margin-bottom: 0;
  }

  .page-faq .faq-toc {
    display: block;
    overflow: visible;
    padding: 0;
    border-left: 2px solid var(--warm-gray);
  }

  .page-faq .faq-toc__label {
    display: block;
    margin: 0 0 0.6rem;
    padding-left: 0.9rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: var(--rock);
  }

  .page-faq .faq-toc .toc__link {
    display: block;
    padding: 0.5rem 0 0.5rem 0.9rem;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-size: 0.82rem;
    line-height: 1.5;
    white-space: normal;
    color: var(--frame);
  }

  .page-faq .faq-toc .toc__link:hover {
    color: var(--terracotta-deep);
  }

  .page-faq .faq-toc .toc__link.is-active {
    background: var(--paper-deep);
    color: var(--terracotta-deep);
    box-shadow: inset 3px 0 0 var(--terracotta);
  }

  .page-faq .save-grid {
    grid-template-columns: minmax(0, 1fr) 250px;
    align-items: start;
    gap: clamp(1.4rem, 3vw, 2.2rem);
  }

  .page-faq .help-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(1.4rem, 3.5vw, 2.4rem);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .save-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}
<<<PAGE_CSS_END>>>