.page-faq {
  --faq-cut: 20px;
  --faq-orange-soft: rgba(244, 87, 28, .34);
  --faq-cyan-soft: rgba(56, 207, 224, .5);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  margin-top: calc(var(--header-h) + 14px);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(22px, 4vw, 44px);
}

.page-faq .faq-frame {
  position: relative;
  padding: clamp(28px, 5vw, 60px) clamp(22px, 5vw, 56px);
  background: var(--frame-grad);
  border: 1px solid var(--line);
  border-radius: var(--panel-r);
  overflow: hidden;
}

.page-faq .faq-frame::before,
.page-faq .faq-frame::after {
  content: "";
  position: absolute;
  width: 46px;
  height: 46px;
  border: 2px solid var(--orange);
  opacity: .85;
  pointer-events: none;
}

.page-faq .faq-frame::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-frame::after {
  bottom: 12px;
  right: 12px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6vw, 54px);
  line-height: 1.16;
  letter-spacing: .04em;
  color: var(--star);
}

.page-faq .faq-frame .lead {
  margin-top: 18px;
  max-width: 62ch;
}

.page-faq .faq-anchor {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .anchor-label {
  color: var(--glacier);
}

.page-faq .anchor-value {
  font-size: clamp(17px, 3vw, 23px);
  font-weight: 700;
  color: var(--star);
}

.page-faq .anchor-sep {
  color: var(--mist);
}

.page-faq .anchor-note {
  color: var(--mist);
  font-size: 12px;
  letter-spacing: .04em;
}

/* ---------- 通用小节说明 ---------- */
.page-faq .faq-sub {
  margin-top: 12px;
  max-width: 64ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 01 步骤卡 ---------- */
.page-faq .faq-map {
  margin: clamp(24px, 4vw, 40px) 0 clamp(26px, 5vw, 42px);
}

.page-faq .step-track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-faq .step-card {
  position: relative;
  padding: 22px 20px 22px 80px;
  background: var(--plateau);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .step-num {
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--orange);
}

@supports (-webkit-text-stroke: 1px #000) {
  .page-faq .step-num {
    color: transparent;
    -webkit-text-stroke: 1.5px var(--orange);
  }
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
  letter-spacing: .04em;
  color: var(--star);
}

.page-faq .step-body {
  margin: 0;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.85;
}

@media (min-width: 860px) {
  .page-faq .step-track {
    gap: 30px;
  }

  .page-faq .step-track::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    margin-left: -1px;
    background: linear-gradient(180deg, transparent, var(--faq-orange-soft) 8%, var(--faq-orange-soft) 92%, transparent);
    transform: rotate(1.4deg);
    transform-origin: top center;
    pointer-events: none;
  }

  .page-faq .step-card {
    width: 74%;
  }

  .page-faq .step-card:nth-child(odd) {
    margin-right: auto;
    transform: rotate(-.5deg);
  }

  .page-faq .step-card:nth-child(even) {
    margin-left: auto;
    transform: rotate(.6deg);
  }
}

/* ---------- 02 配置边界 ---------- */
.page-faq .faq-limits {
  background: linear-gradient(180deg, rgba(56, 207, 224, .06), transparent 62%);
}

.page-faq .limit-block {
  margin-top: clamp(26px, 4vw, 40px);
  display: grid;
  gap: 24px;
}

.page-faq .limit-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .limit-name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--glacier);
  text-transform: uppercase;
}

.page-faq .limit-track {
  position: relative;
}

.page-faq .limit-rail {
  display: flex;
  height: 16px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(14, 23, 48, .9);
  border: 1px solid var(--line);
}

.page-faq .limit-below {
  background: repeating-linear-gradient(-45deg, rgba(244, 87, 28, .42) 0 6px, rgba(244, 87, 28, .12) 6px 12px);
}

.page-faq .limit-above {
  flex: 1;
  background: linear-gradient(90deg, rgba(56, 207, 224, .6), rgba(69, 221, 176, .32));
}

.page-faq .limit-pin {
  position: absolute;
  top: -8px;
  width: 14px;
  height: 32px;
  border-radius: 4px;
  background: var(--glacier);
  box-shadow: 0 0 0 3px rgba(6, 11, 24, .92), 0 0 18px rgba(56, 207, 224, .7);
}

.page-faq .limit-row.is-android .limit-below {
  width: 34%;
}

.page-faq .limit-row.is-android .limit-pin {
  left: calc(34% - 7px);
}

.page-faq .limit-row.is-ios .limit-below {
  width: 46%;
}

.page-faq .limit-row.is-ios .limit-pin {
  left: calc(46% - 7px);
}

.page-faq .limit-value {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--glacier);
}

.page-faq .limit-legend {
  margin: 0;
  font-size: 12px;
  color: var(--mist);
  letter-spacing: .04em;
}

@media (min-width: 720px) {
  .page-faq .limit-row {
    grid-template-columns: 92px 1fr 56px;
    align-items: center;
    gap: 20px;
  }

  .page-faq .limit-value {
    text-align: right;
  }
}

.page-faq .faq-limit-fig {
  margin: clamp(30px, 5vw, 46px) 0 clamp(24px, 4vw, 36px);
}

.page-faq .limit-notes {
  margin-top: 0;
}

.page-faq .limit-note {
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .limit-note-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--glacier);
}

.page-faq .limit-note p {
  margin: 0;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .limit-foot {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 14px;
  color: var(--mist);
  line-height: 1.9;
}

.page-faq .limit-foot a,
.page-faq .plat-foot a,
.page-faq .faq-foot a {
  color: var(--glacier);
  border-bottom: 1px solid rgba(56, 207, 224, .4);
  text-decoration: none;
}

/* ---------- 03 两端准备 ---------- */
.page-faq .plat-grid {
  margin-top: clamp(26px, 4vw, 40px);
  display: grid;
  gap: 18px;
}

.page-faq .plat-card {
  position: relative;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--plateau);
  border: 1px solid var(--line);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--faq-cut));
}

.page-faq .plat-card.is-mobile {
  --plat-accent: var(--orange);
}

.page-faq .plat-card.is-desktop {
  --plat-accent: var(--glacier);
}

.page-faq .plat-tag {
  display: inline-block;
  margin: 0;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--plat-accent);
  border-bottom: 2px solid var(--plat-accent);
}

.page-faq .plat-card h3 {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: .04em;
  color: var(--star);
}

.page-faq .plat-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .plat-list li {
  position: relative;
  padding-left: 18px;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .plat-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: 10px;
  height: 2px;
  background: var(--plat-accent);
}

.page-faq .plat-list b {
  margin-right: 6px;
  color: var(--star);
  font-weight: 700;
}

.page-faq .plat-foot {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 14px;
  color: var(--mist);
  line-height: 1.9;
}

@media (min-width: 820px) {
  .page-faq .plat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 26px;
  }
}

/* ---------- 04 常见报错 ---------- */
.page-faq .err-list {
  margin-top: clamp(26px, 4vw, 40px);
  display: grid;
  gap: 14px;
}

.page-faq .err-item {
  background: var(--plateau);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.page-faq .err-item[open] {
  border-color: rgba(244, 87, 28, .45);
}

.page-faq .err-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .err-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
  border: 1px solid rgba(244, 87, 28, .5);
  border-radius: 6px;
  padding: 4px 8px;
}

.page-faq .err-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 2vw, 18px);
  letter-spacing: .03em;
  line-height: 1.5;
  color: var(--star);
}

.page-faq .err-head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--mist);
  transition: color .3s var(--ease);
}

.page-faq .err-item[open] .err-head::after {
  content: "–";
  color: var(--orange);
}

.page-faq .err-body {
  padding: 4px 20px 22px;
  background: var(--abyss);
  border-top: 1px solid var(--line);
}

.page-faq .err-cause {
  margin: 16px 0 14px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .err-fix {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: fix;
  display: grid;
  gap: 10px;
}

.page-faq .err-fix li {
  counter-increment: fix;
  position: relative;
  padding-left: 34px;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .err-fix li::before {
  content: counter(fix);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--abyss);
  background: var(--orange);
  border-radius: 50%;
}

@media (max-width: 560px) {
  .page-faq .err-head .tag {
    display: none;
  }

  .page-faq .err-head {
    grid-template-columns: auto minmax(0, 1fr) auto;
    padding: 16px;
  }
}

/* ---------- 05 求助 ---------- */
.page-faq .help-panel {
  padding: clamp(28px, 5vw, 56px);
  background: linear-gradient(150deg, rgba(244, 87, 28, .16), rgba(14, 23, 48, .94) 46%, rgba(18, 62, 92, .6));
  border: 1px solid rgba(244, 87, 28, .32);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-faq .help-panel h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 38px);
  line-height: 1.25;
  letter-spacing: .04em;
  color: var(--star);
}

.page-faq .help-lead {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .help-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .help-list li {
  position: relative;
  padding-left: 18px;
  color: var(--body-ink);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--butter);
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .help-mail {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
  line-height: 1.8;
  word-break: break-word;
}

.page-faq .faq-foot {
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--mist);
  line-height: 1.9;
}
<<<END>>>