/* ===== page-faq : 使用教程 ===== */

.page-faq {
  --faq-gap: clamp(20px, 3.2vw, 36px);
  --faq-grid-line: rgba(31, 60, 42, .62);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(30px, 5vw, 68px) clamp(28px, 4.4vw, 56px);
  background:
    radial-gradient(130% 95% at 10% -12%, rgba(13, 43, 26, .98) 0%, rgba(10, 15, 13, 0) 62%),
    var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 84px 84px;
  opacity: .5;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, .08) 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, .08) 100%);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 2.8vw, 32px);
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(29px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--white);
}

.page-faq .faq-hero__copy .lede {
  margin-top: 18px;
  max-width: 60ch;
}

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

.page-faq .faq-hero__routes {
  display: grid;
  gap: 12px;
  align-content: start;
}

/* ---------- 路径卡 ---------- */

.page-faq .route-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(18, 59, 36, .92), rgba(10, 15, 13, .72));
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-faq .route-card:hover,
.page-faq .route-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--lime-a38);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .42);
}

.page-faq .route-card__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 26px;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--lime);
  border: 1px solid var(--lime-a38);
  border-radius: var(--r-pill);
  background: var(--lime-a08);
}

.page-faq .route-card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .route-card__desc {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 锚点导航 ---------- */

.page-faq .faq-anchor {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-block: 1px solid var(--line);
}

.page-faq .faq-anchor__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 52px;
}

.page-faq .faq-anchor__label {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-faq .faq-anchor__list {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 5px 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-anchor__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-anchor .anchor-nav__link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-faq .faq-anchor .anchor-nav__link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .05);
}

.page-faq .faq-anchor .anchor-nav__link.is-current {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

/* ---------- 内容区块 ---------- */

.page-faq .faq-block {
  position: relative;
  padding-block: clamp(44px, 6.2vw, 92px);
  scroll-margin-top: calc(var(--header-h) + 62px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-block:first-of-type {
  border-top: 0;
}

.page-faq .faq-block--last {
  padding-bottom: clamp(56px, 7vw, 108px);
}

.page-faq .faq-block__lede {
  margin-top: var(--faq-gap);
  max-width: 74ch;
}

/* ---------- 三层入口 ---------- */

.page-faq .faq-entry-grid {
  display: grid;
  gap: 14px;
  margin-top: var(--faq-gap);
}

.page-faq .entry-card {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--pitch) 0%, rgba(10, 15, 13, .92) 100%);
  transition: border-color var(--ease), transform var(--ease);
}

.page-faq .entry-card::after {
  content: "";
  position: absolute;
  inset: auto -50px -60px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--lime-a16), transparent 70%);
  pointer-events: none;
}

.page-faq .entry-card:hover {
  border-color: var(--lime-a38);
  transform: translateY(-3px);
}

.page-faq .entry-card__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-faq .entry-card h3 {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .entry-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 图组 ---------- */

.page-faq .faq-figure {
  margin: var(--faq-gap) 0 0;
}

.page-faq .faq-figure .figure__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, var(--pitch-2), var(--ink));
}

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

.page-faq .faq-figure .figure__cap {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 步骤列表 ---------- */

.page-faq .steps {
  list-style: none;
  margin: var(--faq-gap) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, rgba(18, 59, 36, .82), rgba(10, 15, 13, .6));
  transition: transform var(--ease), border-color var(--ease);
}

.page-faq .step:hover {
  transform: translateX(3px);
  border-color: var(--lime-a38);
}

.page-faq .step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink);
  background: var(--lime);
}

.page-faq .steps--compact .step__no {
  width: 34px;
  height: 34px;
  font-size: 13px;
  color: var(--white);
  background: transparent;
  border: 1px solid var(--lime-a38);
  background-color: var(--lime-a08);
}

.page-faq .step__body h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 图文分栏 ---------- */

.page-faq .split {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .split__main {
  min-width: 0;
}

.page-faq .split__media {
  min-width: 0;
}

.page-faq .split__media .faq-figure {
  margin-top: 0;
}

/* ---------- 校准数据 ---------- */

.page-faq .calibrate-card {
  position: relative;
  overflow: hidden;
  margin-top: var(--faq-gap);
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(135deg, var(--violet-a30) 0%, rgba(10, 15, 13, 0) 58%),
    linear-gradient(160deg, var(--pitch-2) 0%, var(--ink) 100%);
}

.page-faq .calibrate-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .28;
  pointer-events: none;
}

.page-faq .calibrate-card__body {
  position: relative;
  z-index: 1;
  max-width: 78ch;
}

.page-faq .calibrate-card__lead {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-faq .calibrate-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .calibrate-list li {
  display: grid;
  gap: 6px;
  padding-left: 16px;
  border-left: 2px solid var(--lime-a38);
}

.page-faq .calibrate-list__key {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .calibrate-list__val {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .calibrate-card__foot {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
}

.page-faq .faq-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  background: rgba(10, 15, 13, .55);
}

.page-faq .faq-copy__value {
  font-size: 14px;
  color: var(--lime);
  word-break: break-all;
}

.page-faq .calibrate-card__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-a38);
  transition: border-color var(--ease), color var(--ease);
}

.page-faq .faq-link:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 常见问题折叠 ---------- */

.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: var(--faq-gap);
}

.page-faq .qa {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--pitch);
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--lime-a38);
}

.page-faq .qa[open] {
  background: linear-gradient(150deg, var(--pitch-2), rgba(10, 15, 13, .9));
  border-color: var(--lime-a38);
}

.page-faq .qa summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--white);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--lime);
  transition: transform var(--ease);
}

.page-faq .qa[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .qa__body {
  padding: 0 20px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
    gap: clamp(32px, 4.4vw, 60px);
  }

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

@media (min-width: 1000px) {
  .page-faq .split {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(32px, 4.4vw, 56px);
  }

  .page-faq .split__media {
    position: sticky;
    top: calc(var(--header-h) + 76px);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-anchor__inner {
    gap: 8px;
    min-height: 48px;
  }

  .page-faq .faq-anchor__label {
    display: none;
  }

  .page-faq .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 18px 18px;
  }

  .page-faq .step__no {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .page-faq .qa summary {
    padding: 14px 16px;
    font-size: 15px;
  }

  .page-faq .qa__body {
    padding: 0 16px 16px;
  }

  .page-faq .faq-copy {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .route-card,
  .page-faq .entry-card,
  .page-faq .step,
  .page-faq .qa,
  .page-faq .qa summary::after {
    transition: none;
  }

  .page-faq .route-card:hover,
  .page-faq .entry-card:hover,
  .page-faq .step:hover {
    transform: none;
  }
}
<<<END>>>