.page-faq {
  --faq-shadow: 6px 6px 0 var(--ink);
  --faq-shadow-sm: 3px 3px 0 var(--ink);
  --faq-line: 2px solid var(--ink);
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}

.page-faq p {
  margin: 0;
}

.page-faq a {
  color: inherit;
}

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

.page-faq .faq-crumb {
  padding-top: 16px;
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  border-bottom: 3px solid var(--crimson);
  padding: clamp(26px, 5vw, 58px) 0 clamp(26px, 4vw, 50px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -16%;
  width: min(70%, 560px);
  height: 145%;
  background: linear-gradient(155deg, var(--crimson) 0%, var(--crimson-deep) 80%);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.9;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
}

.page-faq .faq-hero__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--gold);
}

.page-faq .faq-hero__title {
  font-size: var(--step-1);
  max-width: 13em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  max-width: 34em;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.86);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.page-faq .faq-jump {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 2px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: var(--crimson);
  border-color: var(--white);
  transform: translate(-2px, -2px);
}

/* ---------- 教程索引 ---------- */
.page-faq .faq-index {
  padding-top: clamp(30px, 5vw, 56px);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-index__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .faq-index__head h2 {
  font-size: var(--step-2);
}

.page-faq .faq-index__head p {
  max-width: 46em;
  color: var(--smoke);
}

.page-faq .faq-filter {
  position: relative;
  border: var(--faq-line);
  background: var(--white);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
  background: var(--ink);
  border-bottom: var(--faq-line);
}

.page-faq .faq-filter__chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 2px solid var(--smoke);
  background: var(--charcoal);
  color: var(--warm);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-faq .faq-filter__chip:hover {
  border-color: var(--gold);
}

.page-faq #cat-all:checked ~ .faq-filter__bar [for="cat-all"],
.page-faq #cat-basic:checked ~ .faq-filter__bar [for="cat-basic"],
.page-faq #cat-panel:checked ~ .faq-filter__bar [for="cat-panel"],
.page-faq #cat-client:checked ~ .faq-filter__bar [for="cat-client"],
.page-faq #cat-legacy:checked ~ .faq-filter__bar [for="cat-legacy"] {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--white);
}

.page-faq #cat-all:focus-visible ~ .faq-filter__bar [for="cat-all"],
.page-faq #cat-basic:focus-visible ~ .faq-filter__bar [for="cat-basic"],
.page-faq #cat-panel:focus-visible ~ .faq-filter__bar [for="cat-panel"],
.page-faq #cat-client:focus-visible ~ .faq-filter__bar [for="cat-client"],
.page-faq #cat-legacy:focus-visible ~ .faq-filter__bar [for="cat-legacy"] {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.page-faq #cat-basic:checked ~ .tut-list .tut-item:not(.tut-item--basic),
.page-faq #cat-panel:checked ~ .tut-list .tut-item:not(.tut-item--panel),
.page-faq #cat-client:checked ~ .tut-list .tut-item:not(.tut-item--client),
.page-faq #cat-legacy:checked ~ .tut-list .tut-item:not(.tut-item--legacy) {
  display: none;
}

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

.page-faq .tut-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 2px;
  padding: 14px 16px;
  border-bottom: 2px solid var(--ink);
  transition: background var(--fast) var(--ease);
}

.page-faq .tut-item:last-child {
  border-bottom: none;
}

.page-faq .tut-item:hover {
  background: var(--sand);
}

.page-faq .tut-item__no {
  grid-column: 1;
  grid-row: 1 / span 3;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--crimson);
  line-height: 1.5;
}

.page-faq .tut-item__title {
  grid-column: 2;
  font-size: 1.0625rem;
  font-weight: 800;
}

.page-faq .tut-item__desc {
  grid-column: 2;
  font-size: 0.9375rem;
  color: var(--smoke);
}

.page-faq .tut-item__go {
  grid-column: 2;
  justify-self: start;
  margin-top: 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--crimson-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--crimson);
}

.page-faq .tut-item__go:hover {
  color: var(--crimson);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-faq .faq-toc {
  border: var(--faq-line);
  background: var(--sand);
  box-shadow: var(--faq-shadow-sm);
  padding: 14px 16px;
}

.page-faq .faq-toc__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--crimson-deep);
  margin-bottom: 10px;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 2px solid var(--ink);
  background: var(--warm);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}

.page-faq .faq-toc__list a span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--crimson);
}

.page-faq .faq-toc__list a:hover {
  background: var(--crimson);
  color: var(--white);
}

.page-faq .faq-toc__list a:hover span {
  color: var(--white);
}

.page-faq .faq-toc__note {
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--smoke);
  border-top: 2px dashed var(--smoke);
  padding-top: 10px;
}

.page-faq .faq-flow {
  display: grid;
  gap: clamp(20px, 3.2vw, 34px);
  min-width: 0;
}

.page-faq .faq-sec {
  scroll-margin-top: 70px;
  min-width: 0;
}

.page-faq .faq-card {
  border: var(--faq-line);
  background: var(--white);
  box-shadow: var(--faq-shadow);
  padding: clamp(18px, 2.6vw, 32px);
}

.page-faq .faq-card--paper {
  background: linear-gradient(180deg, var(--warm) 0%, var(--sand) 100%);
}

.page-faq .faq-card--ink {
  background: var(--charcoal);
  color: var(--warm);
  border-color: var(--ink);
}

.page-faq .sec-head {
  display: grid;
  gap: 8px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 2px dashed var(--smoke);
}

.page-faq .sec-head__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--crimson);
  font-weight: 700;
}

.page-faq .sec-head__title {
  font-size: var(--step-2);
}

.page-faq .sec-head__lead {
  max-width: 42em;
  color: var(--smoke);
}

.page-faq .sec-head--dark .sec-head__no {
  color: var(--gold);
}

.page-faq .sec-head--dark .sec-head__title {
  color: var(--white);
}

.page-faq .sec-head--dark .sec-head__lead {
  color: rgba(244, 240, 232, 0.78);
}

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

.page-faq .faq-sec__text {
  margin-top: 16px;
  font-size: 0.9375rem;
  color: var(--smoke);
}

.page-faq .faq-sec__text--dark {
  color: rgba(244, 240, 232, 0.8);
}

.page-faq .faq-link {
  color: var(--crimson-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--crimson);
}

.page-faq .faq-link:hover {
  color: var(--crimson);
}

.page-faq .faq-link--gold {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 四步进度条 ---------- */
.page-faq .steps-bar {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  counter-reset: none;
}

.page-faq .steps-bar a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border: var(--faq-line);
  background: var(--sand);
  color: var(--ink);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), color var(--fast) var(--ease);
}

.page-faq .steps-bar a:hover,
.page-faq .steps-bar a:focus-visible {
  background: var(--crimson);
  color: var(--white);
  transform: translate(-2px, -2px);
}

.page-faq .steps-bar__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--crimson);
  letter-spacing: 0.1em;
}

.page-faq .steps-bar a:hover .steps-bar__no,
.page-faq .steps-bar a:focus-visible .steps-bar__no {
  color: var(--white);
}

.page-faq .faq-figure {
  margin: 0 0 20px;
  border: var(--faq-line);
  background: var(--ink);
  overflow: hidden;
}

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

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  background: var(--warm);
  border-left: 5px solid var(--crimson);
  border-top: 2px solid var(--ink);
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  scroll-margin-top: 70px;
}

.page-faq .step__no {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--crimson);
  line-height: 1.3;
}

.page-faq .step__body h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.page-faq .step__body p {
  font-size: 0.9375rem;
  color: var(--smoke);
}

/* ---------- 档案盒 ---------- */
.page-faq .archive {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .archive-box {
  position: relative;
  padding: 12px 14px 14px 22px;
  background: var(--warm);
  border: var(--faq-line);
  box-shadow: var(--faq-shadow-sm);
  transition: transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}

.page-faq .archive-box::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: var(--crimson);
}

.page-faq .archive-box:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--faq-shadow);
}

.page-faq .archive-box__v {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--crimson-deep);
  letter-spacing: 0.04em;
  margin-right: 10px;
}

.page-faq .archive-box__y {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--smoke);
}

.page-faq .archive-box p {
  margin-top: 4px;
  font-size: 0.9375rem;
  color: var(--ink);
}

/* ---------- 入口三步 ---------- */
.page-faq .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .entry-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid var(--smoke);
}

.page-faq .entry-step__no {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.4;
}

.page-faq .entry-step p {
  font-size: 0.9375rem;
  color: rgba(244, 240, 232, 0.9);
}

/* ---------- 双端对照 ---------- */
.page-faq .dual {
  display: grid;
  gap: 12px;
}

.page-faq .dual__col {
  padding: 16px;
  border: var(--faq-line);
  background: var(--warm);
}

.page-faq .dual__col--dark {
  background: var(--charcoal);
  color: var(--warm);
  border-color: var(--ink);
}

.page-faq .dual__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  padding: 2px 8px;
  background: var(--crimson);
  color: var(--white);
  margin-bottom: 8px;
}

.page-faq .dual__tag--gold {
  background: var(--gold);
  color: var(--ink);
}

.page-faq .dual__col h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.page-faq .dual__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 0.9375rem;
}

.page-faq .dual__col--dark .dual__list {
  color: rgba(244, 240, 232, 0.86);
}

.page-faq .dual__list li::marker {
  color: var(--crimson);
}

.page-faq .dual__col--dark .dual__list li::marker {
  color: var(--gold);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-q {
  border: var(--faq-line);
  background: var(--warm);
  margin-bottom: 10px;
  transition: box-shadow var(--fast) var(--ease);
}

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

.page-faq .faq-q[open] {
  box-shadow: var(--faq-shadow-sm);
  background: var(--white);
}

.page-faq .faq-q summary {
  position: relative;
  padding: 12px 44px 12px 14px;
  font-weight: 800;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--crimson);
}

.page-faq .faq-q[open] summary::after {
  content: "\2212";
}

.page-faq .faq-q summary:hover {
  color: var(--crimson-deep);
}

.page-faq .faq-q__body {
  padding: 10px 14px 14px;
  border-top: 2px solid var(--ink);
  font-size: 0.9375rem;
  color: var(--smoke);
}

/* ---------- 联系 ---------- */
.page-faq .help__grid {
  display: grid;
  gap: 12px;
}

.page-faq .help__box {
  padding: 14px 16px;
  border: 2px solid var(--smoke);
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .help__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-faq .help__mail {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--white);
  word-break: break-all;
}

.page-faq .help__desc {
  margin-top: 6px;
  font-size: 0.875rem;
  color: rgba(244, 240, 232, 0.78);
}

.page-faq .help__tpl {
  margin-top: 16px;
  border: 2px dashed var(--gold);
  padding: 12px 14px;
}

.page-faq .help__tpl-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-faq .help__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--warm);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-faq .help__meta {
  margin-top: 14px;
  font-size: 0.875rem;
  color: rgba(244, 240, 232, 0.78);
}

/* ---------- 大屏 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__title {
    font-size: var(--step-1);
  }

  .page-faq .tut-item {
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 16px;
  }

  .page-faq .tut-item__no {
    grid-row: 1 / span 2;
  }

  .page-faq .tut-item__go {
    grid-column: 3;
    grid-row: 1 / span 2;
    margin-top: 0;
  }

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

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

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

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

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .faq-toc__list a {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.0625rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .steps-bar a,
  .page-faq .archive-box,
  .page-faq .tut-item,
  .page-faq .faq-q {
    transition: none;
  }

  .page-faq .faq-jump:hover,
  .page-faq .faq-jump:focus-visible,
  .page-faq .steps-bar a:hover,
  .page-faq .steps-bar a:focus-visible,
  .page-faq .archive-box:hover {
    transform: none;
  }
}
<<<END>>>