.page-faq {
  --faq-soft: rgba(12, 42, 74, 0.66);
  --faq-card: linear-gradient(160deg, rgba(27, 75, 122, 0.42), rgba(6, 26, 46, 0.86));
  --faq-hair: rgba(159, 179, 202, 0.18);
  background: var(--deep);
  color: var(--ice);
  overflow-x: hidden;
}

.page-faq [id] {
  scroll-margin-top: 84px;
}

.page-faq .crumbs {
  margin: 14px 0 0;
  font-size: 13px;
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4.5vw, 46px) 0 clamp(28px, 5vw, 62px);
  background-image:
    radial-gradient(70% 90% at 6% 0%, rgba(53, 214, 255, 0.2), transparent 62%),
    radial-gradient(58% 76% at 98% 8%, rgba(255, 91, 53, 0.16), transparent 66%),
    linear-gradient(182deg, #061a2e 0%, #08203a 58%, #061a2e 100%);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(159, 179, 202, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159, 179, 202, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.6vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--pure);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 58ch;
  color: rgba(243, 247, 255, 0.82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  padding: 16px 14px;
  border-radius: var(--r-m);
  border: 1px solid var(--faq-hair);
  background: var(--faq-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-stat--accent {
  border-color: rgba(255, 91, 53, 0.5);
  background: linear-gradient(150deg, rgba(255, 91, 53, 0.24), rgba(12, 42, 74, 0.7));
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1;
  color: var(--signal);
}

.page-faq .faq-stat--accent .faq-stat__num {
  color: var(--pure);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate);
}

.page-faq .faq-stat--accent .faq-stat__label {
  color: rgba(243, 247, 255, 0.85);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  padding: clamp(26px, 4vw, 44px) 0 clamp(6px, 2vw, 16px);
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 22px);
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-faq .faq-pills {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-pills a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid rgba(159, 179, 202, 0.34);
  background: rgba(27, 75, 122, 0.28);
  color: var(--ice);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-pills a .num {
  color: var(--cyan);
  font-size: 12px;
}

.page-faq .faq-pills a:hover,
.page-faq .faq-pills a:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 91, 53, 0.12);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  padding: clamp(34px, 6vw, 68px) 0;
}

.page-faq .faq-block__head {
  max-width: 72ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-block__head .lead {
  margin-top: 14px;
  color: rgba(243, 247, 255, 0.78);
}

.page-faq .faq-h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--pure);
}

.page-faq .faq-h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-block__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 255, 0.5);
}

.page-faq .faq-note a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .faq-inline-num {
  color: var(--signal);
  font-size: 0.95em;
}

.page-faq .faq-code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(53, 214, 255, 0.12);
  color: var(--cyan);
}

/* ---------- 折叠步骤 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .faq-group {
  padding: clamp(16px, 2.6vw, 24px);
  border-radius: var(--r-l);
  border: 1px solid var(--faq-hair);
  background: rgba(12, 42, 74, 0.34);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.page-faq .faq-group__head .faq-h3 {
  margin: 0;
  color: var(--signal);
  letter-spacing: 0.01em;
}

.page-faq .faq-step {
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-m);
  background: var(--faq-card);
  margin-bottom: 10px;
  overflow: hidden;
}

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

.page-faq .faq-step summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

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

.page-faq .faq-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
  line-height: 1;
}

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

.page-faq .faq-step summary:hover {
  background: rgba(53, 214, 255, 0.07);
}

.page-faq .faq-step[open] > summary {
  color: var(--signal);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-step[open] .faq-step__no {
  color: var(--orange);
}

.page-faq .faq-step__title {
  font-weight: 600;
}

.page-faq .faq-step__body {
  padding: 14px 16px 18px;
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(243, 247, 255, 0.8);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3.5vw, 34px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--r-m);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 电脑端四步 ---------- */
.page-faq .faq-block--panel {
  border-radius: clamp(20px, 3vw, 34px);
  border: 1px solid var(--faq-hair);
  background:
    radial-gradient(80% 70% at 90% 0%, rgba(122, 108, 255, 0.16), transparent 62%),
    linear-gradient(170deg, rgba(12, 42, 74, 0.9), rgba(6, 26, 46, 0.96));
  padding-inline: clamp(16px, 3.4vw, 40px);
  margin: 10px 0 0;
}

.page-faq .faq-flow {
  display: none;
  width: 100%;
  height: auto;
  margin: 6px 0 22px;
}

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

.page-faq .faq-lane__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: clamp(14px, 2.4vw, 20px);
  border-radius: var(--r-m);
  border: 1px solid var(--faq-hair);
  background: rgba(6, 26, 46, 0.55);
}

.page-faq .faq-lane__no {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--orange);
}

.page-faq .faq-lane__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(243, 247, 255, 0.8);
}

.page-faq .faq-lane__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 255, 0.5);
}

.page-faq .faq-lane__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  font-family: var(--font-mono);
}

/* ---------- 冰白阅读区 ---------- */
.page-faq .faq-block--light {
  background: var(--ice);
  color: var(--ink);
  border-radius: clamp(20px, 3vw, 34px);
  padding-inline: clamp(16px, 3.4vw, 40px);
  margin: 10px 0 0;
  background-image: radial-gradient(70% 80% at 100% 0%, rgba(53, 214, 255, 0.16), transparent 60%);
}

.page-faq .faq-block--light .faq-h2,
.page-faq .faq-block--light .faq-h3 {
  color: var(--ink);
}

.page-faq .faq-block--light .lead {
  color: rgba(10, 26, 47, 0.76);
}

.page-faq .faq-block--light .eyebrow {
  color: var(--echo);
}

.page-faq .faq-devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-device {
  padding: clamp(16px, 2.4vw, 22px);
  border-radius: var(--r-m);
  background: var(--pure);
  border: 1px solid rgba(10, 26, 47, 0.09);
  border-top: 3px solid var(--orange);
}

.page-faq .faq-device p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(10, 26, 47, 0.78);
}

.page-faq .faq-device__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.01em;
  color: var(--echo);
  margin: 0;
}

.page-faq .faq-groups--light {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-step--light {
  background: var(--pure);
  border-color: rgba(10, 26, 47, 0.1);
}

.page-faq .faq-step--light summary {
  color: var(--ink);
}

.page-faq .faq-step--light summary::after {
  color: var(--echo);
}

.page-faq .faq-step--light summary:hover {
  background: rgba(27, 75, 122, 0.07);
}

.page-faq .faq-step--light[open] > summary {
  color: var(--echo);
  border-bottom-color: rgba(10, 26, 47, 0.1);
}

.page-faq .faq-step--light .faq-step__no {
  color: var(--orange);
}

.page-faq .faq-step--light .faq-step__body p {
  color: rgba(10, 26, 47, 0.78);
}

/* ---------- 版本记录 ---------- */
.page-faq .faq-version-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 2px solid rgba(159, 179, 202, 0.34);
  display: grid;
  gap: 20px;
}

.page-faq .faq-timeline__item {
  position: relative;
}

.page-faq .faq-timeline__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--signal);
}

.page-faq .faq-timeline__item p {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(243, 247, 255, 0.78);
}

.page-faq .faq-timeline__item .tag {
  margin-bottom: 6px;
}

.page-faq .faq-version-aside {
  padding: clamp(16px, 2.6vw, 26px);
  border-radius: var(--r-l);
  border: 1px solid var(--faq-hair);
  background: var(--faq-card);
}

.page-faq .faq-version-list {
  margin: 6px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-version-list li {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(243, 247, 255, 0.8);
}

.page-faq .faq-version-list strong {
  color: var(--cyan);
  font-weight: 600;
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-support-card {
  padding: clamp(16px, 2.4vw, 22px);
  border-radius: var(--r-m);
  border: 1px solid var(--faq-hair);
  background: rgba(6, 26, 46, 0.55);
}

.page-faq .faq-support-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(243, 247, 255, 0.8);
}

.page-faq .faq-support-card--accent {
  border-color: rgba(183, 255, 74, 0.42);
  background: linear-gradient(155deg, rgba(183, 255, 74, 0.14), rgba(6, 26, 46, 0.7));
}

.page-faq .faq-support-card--accent .faq-h3 {
  color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-flow {
    display: block;
  }

  .page-faq .faq-groups--light {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
  }

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

  .page-faq .faq-version-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-lane {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-groups--light {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-pills a,
  .page-faq .faq-step summary {
    transition: none;
  }
}
<<<END>>>