.page-faq {
  --faq-cut: 14px;
  --faq-radius: 4px;
  background: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 40px) 0 clamp(38px, 6vw, 72px);
  background:
    radial-gradient(115% 85% at 92% -10%, rgba(52, 245, 208, 0.18), transparent 62%),
    radial-gradient(90% 80% at -5% 8%, rgba(255, 107, 74, 0.2), transparent 58%),
    var(--ink);
  color: var(--paper);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(183, 197, 208, 0.055) 0 1px, transparent 1px 10px);
  pointer-events: none;
}
.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: clamp(22px, 4vw, 38px);
  color: var(--mist);
}
.page-faq .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .breadcrumbs__link:hover,
.page-faq .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-faq .breadcrumbs__sep { color: rgba(183, 197, 208, 0.5); }
.page-faq .breadcrumbs__current { color: var(--coral); }

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 44px);
  align-items: center;
}
.page-faq .faq-hero__kicker {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 14px;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 20em;
}
.page-faq .faq-hero .lede {
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 40em;
}

/* 首屏装饰叠层 */
.page-faq .faq-hero__mark {
  position: relative;
  height: 250px;
  display: none;
}
.page-faq .faq-hero__panel {
  position: absolute;
  display: flex;
  align-items: flex-end;
  width: 78%;
  height: 74px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(120deg, rgba(11, 41, 66, 0.92), rgba(19, 47, 69, 0.55));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.page-faq .faq-hero__panel i {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.page-faq .faq-hero__panel--1 { top: 8px; right: 0; }
.page-faq .faq-hero__panel--2 { top: 88px; left: 4%; border-color: rgba(255, 107, 74, 0.45); }
.page-faq .faq-hero__panel--2 i { color: var(--coral); }
.page-faq .faq-hero__panel--3 { top: 168px; right: 6%; border-color: rgba(52, 245, 208, 0.55); }
.page-faq .faq-hero__panel--3 i { color: var(--cyan); }

/* 三步条 */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: faqstep;
}
.page-faq .faq-step {
  position: relative;
  padding: 20px 20px 22px;
  background: rgba(11, 41, 66, 0.78);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--coral), rgba(255, 107, 74, 0));
}
.page-faq .faq-step:hover {
  border-color: rgba(52, 245, 208, 0.5);
  background: rgba(19, 47, 69, 0.9);
}
.page-faq .faq-step__no {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 10px;
}
.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: var(--paper);
}
.page-faq .faq-step p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-step__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 74, 0.5);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .faq-step__link:hover,
.page-faq .faq-step__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 正文两栏 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(32px, 6vw, 76px) 0 clamp(36px, 6vw, 84px);
}
.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
}

/* 目录 */
.page-faq .faq-toc {
  border: 1px solid rgba(6, 26, 46, 0.14);
  background: var(--fog);
  padding: 18px 18px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}
.page-faq .faq-toc__title {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin: 0 0 12px;
}
.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .faq-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px 9px 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .faq-toc__link .mono {
  font-size: 11px;
  color: var(--coral);
  flex: none;
}
.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: rgba(52, 245, 208, 0.2);
  border-left-color: var(--ink);
  color: var(--ink);
}

/* 章节 */
.page-faq .faq-chapter {
  padding-bottom: clamp(28px, 5vw, 52px);
  margin-bottom: clamp(28px, 5vw, 52px);
  border-bottom: 1px solid rgba(6, 26, 46, 0.12);
}
.page-faq .faq-chapter:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-chapter__no {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--coral);
  margin: 0 0 10px;
}
.page-faq .faq-chapter h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--ink);
}
.page-faq .faq-chapter__lead {
  font-size: clamp(15px, 2.2vw, 16px);
  line-height: 1.8;
  color: var(--ink-3);
  margin: 0 0 24px;
  max-width: 40em;
}
.page-faq .faq-chapter__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-3);
  padding-left: 14px;
  border-left: 3px solid var(--coral);
}

/* 步骤列表 */
.page-faq .do-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-faq .do-list li {
  display: flex;
  gap: 14px;
  padding: 18px 18px 18px 16px;
  background: #fff;
  border: 1px solid rgba(6, 26, 46, 0.1);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.page-faq .do-list__no {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 13px;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}
.page-faq .do-list h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.45;
  margin: 4px 0 8px;
  color: var(--ink);
}
.page-faq .do-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-3);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(6, 26, 46, 0.14);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  background: var(--fog);
}
.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ink-3);
}

/* 版本卡 */
.page-faq .version-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}
.page-faq .version-card {
  padding: 18px 18px 20px;
  background: var(--fog);
  border: 1px solid rgba(6, 26, 46, 0.1);
  border-top: 3px solid rgba(6, 26, 46, 0.28);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-faq .version-card:hover {
  border-top-color: var(--coral);
  transform: translateY(-2px);
}
.page-faq .version-card--now {
  background: var(--ink-2);
  border-color: rgba(52, 245, 208, 0.4);
  border-top-color: var(--cyan);
  color: var(--paper);
}
.page-faq .version-card__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  background: rgba(255, 107, 74, 0.14);
  color: var(--coral);
  margin-bottom: 12px;
}
.page-faq .version-card--now .version-card__tag {
  background: rgba(52, 245, 208, 0.16);
  color: var(--cyan);
}
.page-faq .version-card h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--ink);
}
.page-faq .version-card--now h3 { color: var(--paper); }
.page-faq .version-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-3);
}
.page-faq .version-card--now p { color: var(--mist); }

/* 提示面板 */
.page-faq .tip-panel {
  padding: 18px 18px 18px 20px;
  background: rgba(255, 107, 74, 0.09);
  border-left: 3px solid var(--coral);
}
.page-faq .tip-panel--cyan {
  background: rgba(52, 245, 208, 0.16);
  border-left-color: var(--ink);
}
.page-faq .tip-panel__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  margin: 0 0 8px;
}
.page-faq .tip-panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}
.page-faq .tip-panel__label + p { margin-top: 0; }

/* 筛选维度矩阵 */
.page-faq .filter-matrix {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .filter-matrix li {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid rgba(6, 26, 46, 0.1);
  border-left: 3px solid var(--cyan);
}
.page-faq .filter-matrix__key {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 3px 7px;
  background: var(--ink);
  color: var(--cyan);
  margin-bottom: 8px;
}
.page-faq .filter-matrix p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-3);
}

/* 扫码区 */
.page-faq .scan-wrap {
  display: grid;
  gap: 24px;
}
.page-faq .scan-path {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-faq .scan-path li {
  position: relative;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 0 22px 0;
}
.page-faq .scan-path li:last-child { padding-bottom: 0; }
.page-faq .scan-path li::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 26px;
  bottom: 2px;
  width: 2px;
  background: linear-gradient(180deg, rgba(6, 26, 46, 0.35), rgba(52, 245, 208, 0.9));
}
.page-faq .scan-path li:last-child::before { display: none; }
.page-faq .scan-path .mono {
  flex: none;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-size: 11px;
  background: var(--ink);
  color: var(--cyan);
  border-radius: 50%;
}
.page-faq .scan-path p {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-3);
}
.page-faq .scan-note {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-3);
}
.page-faq .faq-figure--phone img {
  max-height: 520px;
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-q {
  background:
    radial-gradient(80% 70% at 100% 0%, rgba(52, 245, 208, 0.12), transparent 60%),
    var(--ink);
  color: var(--paper);
  padding: clamp(34px, 6vw, 80px) 0 clamp(36px, 6vw, 84px);
}
.page-faq .faq-q__head {
  max-width: 44em;
  margin-bottom: clamp(24px, 4vw, 36px);
}
.page-faq .faq-q__kicker {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--coral);
  margin: 0 0 12px;
}
.page-faq .faq-q h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--paper);
}
.page-faq .faq-q__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}
.page-faq .qa {
  background: rgba(11, 41, 66, 0.82);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.page-faq .qa[open] {
  border-color: rgba(52, 245, 208, 0.5);
  background: rgba(19, 47, 69, 0.95);
}
.page-faq .qa summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}
.page-faq .qa summary::-webkit-details-marker { display: none; }
.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible { color: var(--cyan); }
.page-faq .qa__q { flex: 1; min-width: 0; }
.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
}
.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.page-faq .qa__mark::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.page-faq .qa__mark::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}
.page-faq .qa[open] .qa__mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.page-faq .qa__a {
  padding: 0 18px 20px;
}
.page-faq .qa__a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 48em;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  background: var(--coral);
  color: var(--ink);
  padding: clamp(30px, 5vw, 56px) 0;
}
.page-faq .faq-cta__inner {
  display: grid;
  gap: 20px;
  align-items: center;
}
.page-faq .faq-cta h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--ink);
}
.page-faq .faq-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #0d2035;
  max-width: 42em;
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .version-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .filter-matrix { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .faq-cta__inner { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); }
  .page-faq .faq-hero__mark { display: block; }
  .page-faq .faq-layout { grid-template-columns: 218px minmax(0, 1fr); }
  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
    align-self: start;
  }
  .page-faq .filter-matrix { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .scan-wrap { grid-template-columns: minmax(0, 1fr) 260px; align-items: start; }
  .page-faq .do-list li { padding: 22px 24px 22px 20px; }
  .page-faq .qa summary { padding: 20px 24px; font-size: 16px; }
  .page-faq .qa__a { padding: 0 24px 22px; }
}

@media (min-width: 1100px) {
  .page-faq .faq-layout { grid-template-columns: 236px minmax(0, 1fr); gap: 56px; }
  .page-faq .faq-steps { gap: 18px; }
}
<<<END>>>