.page-faq {
  --faq-rule: rgba(11, 31, 26, .16);
  --faq-muted: #4C5A52;
  background: var(--ink);
  color: var(--cold);
}

/* ---------- 首屏框景 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(96px, 15vw, 172px) 0 clamp(40px, 6vw, 74px);
  background: linear-gradient(180deg, var(--deep) 0%, var(--ink) 100%);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 92px 92px;
  opacity: .38;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(280px, 40vw);
  height: 4px;
  background: var(--lime);
}

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

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--lime);
}

.page-faq .crumbs li {
  color: var(--mist);
}

.page-faq .faq-kicker {
  margin: 24px 0 0;
  color: var(--lime);
  letter-spacing: .16em;
}

.page-faq h1 {
  margin: 14px 0 0;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: .05em;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 40em;
  font-size: clamp(1rem, 1.3vw, 1.08rem);
  line-height: 1.85;
  color: var(--cold);
  opacity: .86;
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 0;
  max-width: 720px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-faq .faq-quick > div {
  flex: 1 1 148px;
  padding: 14px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-quick dt {
  margin: 0;
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-quick dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--lime);
}

.page-faq .faq-quick dd span {
  margin-left: 4px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--cold);
  opacity: .7;
}

/* ---------- 主体：纸色阅读段 ---------- */

.page-faq .faq-body {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(38px, 5.5vw, 78px) 0 clamp(60px, 9vw, 118px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 50px);
}

/* 左侧分组目录 */

.page-faq .faq-index {
  border-left: 2px solid var(--line);
}

.page-faq .faq-index > .micro {
  display: block;
  padding: 0 0 10px 16px;
  color: var(--faq-muted);
  letter-spacing: .16em;
}

.page-faq .faq-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 14px 8px 16px;
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--faq-muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--paper-ink);
  border-left-color: var(--amber);
  background: rgba(11, 31, 26, .05);
}

.page-faq .idx-no {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  color: var(--amber);
}

/* 分组 */

.page-faq .faq-group {
  margin: 0 0 clamp(44px, 6vw, 76px);
  scroll-margin-top: 108px;
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--paper-ink);
}

.page-faq .faq-group-no {
  flex: none;
  padding: 7px 9px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .9rem;
  line-height: 1;
  color: var(--paper);
  background: var(--paper-ink);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.24rem, 2.4vw, 1.76rem);
  line-height: 1.3;
  letter-spacing: .01em;
}

.page-faq .faq-group-lede {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: .97rem;
  line-height: 1.85;
  color: var(--faq-muted);
}

/* 步骤 */

.page-faq .faq-steps {
  margin: 0 0 22px;
  padding: 0;
  max-width: 46em;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--faq-rule);
  font-size: .95rem;
  line-height: 1.7;
}

.page-faq .faq-steps li:first-child {
  border-top: 1px dashed var(--faq-rule);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .95rem;
  color: var(--amber);
}

/* 记录调取的三种方式 */

.page-faq .faq-methods {
  margin: 0 0 22px;
  padding: 0;
  max-width: 46em;
  list-style: none;
  display: grid;
  gap: 0;
  border: 2px solid var(--paper-ink);
}

.page-faq .faq-methods li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-methods li:last-child {
  border-bottom: 0;
}

.page-faq .faq-method-key {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .84rem;
  letter-spacing: .1em;
  color: var(--paper-ink);
}

.page-faq .faq-method-val {
  font-size: .93rem;
  line-height: 1.75;
  color: var(--faq-muted);
}

/* 图片 */

.page-faq .faq-figure {
  margin: 4px 0 24px;
  max-width: 470px;
  border: 2px solid var(--paper-ink);
  background: var(--deep);
  box-shadow: 6px 6px 0 var(--line);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-size: .76rem;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--mist);
  background: var(--deep);
}

.page-faq .faq-figure--phone {
  max-width: 250px;
  margin-left: 0;
}

.page-faq .faq-figure--phone img {
  aspect-ratio: 9 / 16;
}

/* 路径示意 */

.page-faq .faq-route {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 4px 0 22px;
}

/* 问答折叠 */

.page-faq .faq-list {
  display: grid;
  gap: 12px;
  max-width: 52em;
}

.page-faq .qa {
  border: 2px solid var(--paper-ink);
  border-left-width: 8px;
  border-left-color: var(--lime-dim);
  background: var(--cold);
  box-shadow: 5px 5px 0 var(--line);
}

.page-faq #faq-review .qa {
  border-left-color: var(--review);
}

.page-faq #faq-android .qa,
.page-faq #faq-plan .qa {
  border-left-color: var(--amber);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: .96rem;
  line-height: 1.6;
  color: var(--paper-ink);
  transition: background-color .2s ease;
}

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

.page-faq .qa > summary::marker {
  content: "";
}

.page-faq .qa > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--faq-muted);
}

.page-faq .qa[open] > summary::after {
  content: "−";
  color: var(--amber);
}

.page-faq .qa > summary:hover {
  background: rgba(11, 31, 26, .05);
}

.page-faq .qa-body {
  padding: 0 16px 16px;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--paper-ink);
}

.page-faq .qa[open] .qa-body {
  padding-top: 14px;
  border-top: 1px dashed var(--faq-rule);
}

.page-faq .qa-body p {
  margin: 0 0 10px;
}

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

.page-faq .qa-body a {
  color: var(--paper-ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

.page-faq .qa-body a:hover,
.page-faq .qa-body a:focus-visible {
  color: var(--amber);
}

/* 联系方式条 */

.page-faq .faq-contact {
  margin: 0 0 22px;
  padding: 0;
  max-width: 46em;
  list-style: none;
  display: grid;
  border: 2px solid var(--paper-ink);
  border-left-width: 8px;
  border-left-color: var(--lime);
}

.page-faq .faq-contact li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-contact li:last-child {
  border-bottom: 0;
}

.page-faq .faq-contact-key {
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faq-muted);
}

.page-faq .faq-contact-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .02em;
  color: var(--paper-ink);
  word-break: break-word;
}

/* 下一步 */

.page-faq .faq-next {
  margin-top: 28px;
  padding: 20px 22px;
  max-width: 46em;
  border: 2px solid var(--paper-ink);
  border-left-width: 8px;
  border-left-color: var(--amber);
  background: rgba(200, 255, 61, .16);
}

.page-faq .faq-next p {
  margin: 0 0 16px;
  font-size: .93rem;
  line-height: 1.85;
}

.page-faq .faq-next p a {
  color: var(--paper-ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

.page-faq .faq-next p a:hover,
.page-faq .faq-next p a:focus-visible {
  color: var(--amber);
}

.page-faq .faq-cta {
  border-color: var(--paper-ink);
  color: var(--paper-ink);
  background: transparent;
}

.page-faq .faq-cta:hover,
.page-faq .faq-cta:focus-visible {
  background: var(--paper-ink);
  color: var(--paper);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-contact li {
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-faq .faq-methods li {
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 226px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-figure--phone {
    margin-left: clamp(0px, 6vw, 84px);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-group-head {
    flex-wrap: wrap;
    gap: 10px;
  }

  .page-faq .faq-steps li {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 8px;
  }

  .page-faq .faq-contact-val {
    font-size: .92rem;
  }

  .page-faq .faq-figure {
    box-shadow: 4px 4px 0 var(--line);
  }
}
<<<END>>>