.page-faq {
  --faq-glow: radial-gradient(125% 92% at 86% 0%, rgba(62, 242, 210, .15), transparent 58%);
  --faq-toc-w: 224px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(36px, 6vw, 68px);
  background-image: var(--faq-glow);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 4vw, 38px);
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

.page-faq .faq-pulse {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(62, 242, 210, .16);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.07;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-hero__lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-slate);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-triage {
  padding: 22px 22px 10px;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}

.page-faq .faq-triage__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-slate);
}

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

.page-faq .faq-triage__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--c-line);
}

.page-faq .faq-triage__item:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-faq .faq-triage__node {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--c-cyan);
  background: rgba(62, 242, 210, .08);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

.page-faq .faq-triage__node--warn {
  border-color: var(--c-orange);
  background: rgba(255, 122, 60, .1);
  color: var(--c-orange);
}

.page-faq .faq-triage__k {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-white);
}

.page-faq .faq-triage__v {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ---------- 三条线总览 ---------- */
.page-faq .faq-how {
  padding: clamp(36px, 6vw, 70px) 0;
}

.page-faq .faq-lanes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}

.page-faq .faq-lane {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-line);
  border-radius: var(--r-md);
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-lane--compare { border-top-color: var(--c-green); }
.page-faq .faq-lane--entry { border-top-color: var(--c-cyan); }
.page-faq .faq-lane--version { border-top-color: var(--c-amber); }

.page-faq .faq-lane:hover {
  background: rgba(62, 242, 210, .05);
}

.page-faq .faq-lane__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--c-white);
}

.page-faq .faq-lane__text {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--c-slate);
}

.page-faq .faq-lane__go {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-lane__go:hover,
.page-faq .faq-lane__go:focus-visible {
  color: var(--c-orange);
  border-bottom-style: solid;
}

/* ---------- 操作台：目录 + 步骤 ---------- */
.page-faq .faq-board {
  padding: clamp(8px, 2vw, 18px) 0 clamp(36px, 6vw, 70px);
}

.page-faq .faq-board__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-toc {
  padding: 20px;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-slate);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px 8px;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  color: var(--c-white);
  text-decoration: none;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: rgba(62, 242, 210, .08);
  border-left-color: var(--c-cyan);
  color: var(--c-cyan);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

.page-faq .faq-block {
  padding-bottom: clamp(30px, 4vw, 48px);
}

.page-faq .faq-block + .faq-block {
  padding-top: clamp(30px, 4vw, 48px);
  border-top: 1px dashed var(--c-line);
}

.page-faq .faq-block__head {
  margin-bottom: 26px;
}

.page-faq .faq-block__code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.page-faq .faq-block__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.12;
  letter-spacing: -0.005em;
  color: var(--c-white);
}

.page-faq .faq-block__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-slate);
}

/* 竖向步骤轨道 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 28px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 46px;
  bottom: 4px;
  border-left: 2px dashed var(--c-line);
}

.page-faq .faq-step__node {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--c-cyan);
  background: var(--c-cabin);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-cyan);
  transition: background-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-step:hover .faq-step__node {
  background: rgba(62, 242, 210, .16);
  transform: scale(1.06);
}

.page-faq .faq-step__node--warn {
  border-color: var(--c-orange);
  color: var(--c-orange);
  background: rgba(255, 122, 60, .1);
}

.page-faq .faq-step:hover .faq-step__node--warn {
  background: rgba(255, 122, 60, .2);
}

.page-faq .faq-step__content {
  padding-top: 6px;
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-white);
}

.page-faq .faq-step__text {
  margin: 0 0 10px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-slate);
}

.page-faq .faq-step__check {
  display: block;
  margin: 0;
  padding: 7px 13px;
  border-left: 2px solid var(--c-green);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(31, 185, 140, .09);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-white);
}

.page-faq .faq-step__check span {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--c-green);
}

/* 桌面端三个环节 */
.page-faq .faq-stages {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 4px;
}

.page-faq .faq-stage {
  position: relative;
  padding: 20px;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  transition: border-color .22s var(--ease);
}

.page-faq .faq-stage:hover {
  border-color: rgba(31, 185, 140, .6);
}

.page-faq .faq-stage__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-green);
}

.page-faq .faq-stage__title {
  margin: 0 0 10px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--c-white);
}

.page-faq .faq-stage__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-slate);
}

.page-faq .faq-stage__out {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-green);
}

.page-faq .faq-aside {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-slate);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 28px 0 0;
  overflow: hidden;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--c-slate);
}

/* 版本信息表 */
.page-faq .faq-meta {
  margin: 24px 0 0;
  overflow: hidden;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}

.page-faq .faq-meta__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 18px;
  padding: 14px 20px;
  border-bottom: 1px dashed var(--c-line);
}

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

.page-faq .faq-meta__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--c-amber);
}

.page-faq .faq-meta__v {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-white);
}

.page-faq .faq-callout {
  display: grid;
  gap: 16px;
  align-items: center;
  margin-top: 22px;
  padding: 22px;
  background: linear-gradient(100deg, rgba(62, 242, 210, .1), transparent 62%), var(--c-cabin);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--r-md);
}

.page-faq .faq-callout__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-slate);
}

/* ---------- 常见疑问 ---------- */
.page-faq .faq-ask {
  padding: clamp(36px, 6vw, 70px) 0 clamp(40px, 7vw, 84px);
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-ask__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 30px;
}

.page-faq .faq-group {
  padding-top: 18px;
  border-top: 2px solid var(--c-line);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: .01em;
  color: var(--c-white);
}

.page-faq .faq-group__title::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--c-cyan);
}

.page-faq .faq-group--pc .faq-group__title::before { background: var(--c-green); }
.page-faq .faq-group--swap .faq-group__title::before { background: var(--c-amber); }

.page-faq .faq-q {
  margin-bottom: 10px;
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-q[open] {
  border-color: rgba(62, 242, 210, .55);
}

.page-faq .faq-q__summary {
  position: relative;
  padding: 13px 16px 13px 40px;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-white);
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-q__summary::before {
  content: "+";
  position: absolute;
  left: 15px;
  top: 11px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .faq-q[open] .faq-q__summary::before { content: "\2013"; }

.page-faq .faq-q__summary:hover,
.page-faq .faq-q__summary:focus-visible { color: var(--c-cyan); }

.page-faq .faq-q__body {
  padding: 0 16px 16px 40px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-slate);
}

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

.page-faq .faq-q__link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px dashed currentColor;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--c-cyan);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .faq-q__link:hover,
.page-faq .faq-q__link:focus-visible { color: var(--c-orange); }

.page-faq .faq-note {
  display: grid;
  gap: 18px;
  margin-top: 34px;
  padding: 24px;
  background: linear-gradient(100deg, rgba(255, 122, 60, .11), transparent 62%), var(--c-cabin);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-orange);
  border-radius: var(--r-md);
}

.page-faq .faq-note__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--c-white);
}

.page-faq .faq-note__text {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--c-slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-meta__row {
    grid-template-columns: 172px minmax(0, 1fr);
  }
}

@media (min-width: 700px) {
  .page-faq .faq-stages {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-stage:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -18px;
    width: 18px;
    border-top: 2px dashed var(--c-line);
  }

  .page-faq .faq-callout {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-lanes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-ask__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 30px;
  }

  .page-faq .faq-note {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, .95fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-board__grid {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: 54px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-toc__list {
    grid-template-columns: 1fr;
  }
}
<<<END>>>