/* ===== 立即博体育 · 使用指南 /guide/ ===== */

.page-faq {
  --faq-line: rgba(110, 143, 135, .24);
  --faq-line-soft: rgba(110, 143, 135, .13);
  --faq-surface: rgba(18, 61, 46, .42);
  --faq-surface-2: rgba(11, 31, 23, .62);
  --faq-body: rgba(244, 240, 230, .82);
  --faq-body-dim: rgba(244, 240, 230, .64);

  display: block;
  background:
    radial-gradient(115% 55% at 88% -8%, rgba(46, 242, 210, .10), transparent 62%),
    radial-gradient(85% 46% at 2% 4%, rgba(255, 122, 26, .055), transparent 60%),
    var(--lb-night);
  color: var(--lb-rice);
  font-family: var(--lb-font-body);
  overflow-x: clip;
  padding-bottom: 3.5rem;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.25rem) 0 clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__inner {
  max-width: var(--lb-shell);
  margin-inline: auto;
  padding-inline: 1.15rem;
}

.page-faq .faq-hero__crumbs {
  margin-bottom: 1.35rem;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  color: var(--lb-cyan);
}

.page-faq .faq-hero__title {
  margin: .7rem 0 0;
  font-family: var(--lb-font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 7vw, 4.1rem);
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--lb-rice);
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 1.35rem 0 0;
  max-width: 64ch;
  font-size: clamp(.98rem, 1.5vw, 1.1rem);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-metrics {
  list-style: none;
  margin: 1.9rem 0 0;
  padding: 1.3rem 0 0;
  border-top: 1px solid var(--faq-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem 1.1rem;
}

.page-faq .faq-metric {
  display: grid;
  gap: .2rem;
  align-content: start;
  min-width: 0;
}

.page-faq .faq-metric__value {
  font-family: var(--lb-font-mono);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.8vw, 1.8rem);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--lb-cyan);
}

.page-faq .faq-metric__unit {
  margin-left: .18em;
  font-size: .6em;
  color: rgba(46, 242, 210, .72);
}

.page-faq .faq-metric__label {
  font-size: .8rem;
  line-height: 1.55;
  color: var(--faq-body-dim);
}

/* ---------- 两栏骨架 ---------- */

.page-faq .faq-layout {
  max-width: var(--lb-shell);
  margin-inline: auto;
  padding: 2rem 1.15rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

/* ---------- 左侧分类索引 ---------- */

.page-faq .faq-index {
  align-self: start;
  padding: 1rem 1rem 1.15rem;
  background: var(--faq-surface);
  box-shadow: inset 0 0 0 1px var(--faq-line);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
}

.page-faq .faq-index__label {
  margin: 0 0 .7rem;
  font-family: var(--lb-font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lb-cyan-gray);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .55rem .55rem .55rem .45rem;
  border-left: 2px solid transparent;
  color: rgba(244, 240, 230, .8);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.5;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--lb-cyan);
  border-left-color: var(--lb-orange);
  background: rgba(46, 242, 210, .07);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--lb-font-mono);
  font-size: .7rem;
  font-weight: 700;
  color: var(--lb-clay);
}

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

.page-faq .faq-index__note {
  margin: 1rem 0 0;
  padding-top: .85rem;
  border-top: 1px dashed var(--faq-line);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--faq-body-dim);
}

/* ---------- 右侧问答主体 ---------- */

.page-faq .faq-body {
  min-width: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-block {
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--faq-line-soft);
  scroll-margin-top: calc(var(--lb-header-h) + 1.5rem);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.page-faq .faq-block__head {
  display: grid;
  gap: .45rem;
  margin-bottom: 1.3rem;
}

.page-faq .faq-block__num {
  font-family: var(--lb-font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lb-cyan);
}

.page-faq .faq-block__num::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  margin-right: .55rem;
  vertical-align: middle;
  background: var(--lb-orange);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--lb-font-display);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--lb-rice);
}

/* ---------- 步骤 ---------- */

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: .85rem;
  padding: 1rem 1.1rem;
  background: var(--faq-surface-2);
  border-left: 2px solid rgba(46, 242, 210, .42);
}

.page-faq .faq-step__n {
  font-family: var(--lb-font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--lb-orange);
}

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

.page-faq .faq-step__title {
  margin: 0 0 .4rem;
  font-family: var(--lb-font-display);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--lb-rice);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--faq-body);
}

/* ---------- 图片 ---------- */

.page-faq .faq-shot {
  margin: 1.5rem 0 0;
  padding: .55rem;
  background: linear-gradient(150deg, rgba(47, 107, 79, .5), rgba(11, 31, 23, .92));
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

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

.page-faq .faq-shot figcaption {
  margin-top: .6rem;
  padding: 0 .3rem .25rem;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--lb-cyan-gray);
}

.page-faq .faq-shot--portrait {
  max-width: 300px;
  margin-inline: auto;
}

/* ---------- 旁注 ---------- */

.page-faq .faq-note {
  margin: 1.25rem 0 0;
  padding: .85rem 1rem;
  border-left: 2px solid var(--lb-orange);
  background: rgba(255, 122, 26, .07);
  font-size: .88rem;
  line-height: 1.78;
  color: var(--faq-body);
}

.page-faq .faq-note__label {
  display: block;
  margin-bottom: .3rem;
  font-family: var(--lb-font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lb-orange);
}

.page-faq .faq-note a {
  color: var(--lb-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible {
  color: var(--lb-orange);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-panels {
  display: grid;
  gap: .7rem;
}

.page-faq .faq-panel {
  background: rgba(11, 31, 23, .55);
  box-shadow: inset 0 0 0 1px var(--faq-line);
  transition: box-shadow .2s ease, background-color .2s ease;
}

.page-faq .faq-panel[open] {
  background: var(--faq-surface);
  box-shadow: inset 0 0 0 1px var(--lb-line-strong);
}

.page-faq .faq-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .92rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--lb-font-display);
  font-weight: 800;
  font-size: .98rem;
  line-height: 1.5;
  color: var(--lb-rice);
}

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

.page-faq .faq-panel summary::after {
  content: "+";
  flex: none;
  font-family: var(--lb-font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--lb-cyan);
}

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

.page-faq .faq-panel summary:focus-visible {
  outline: 2px solid var(--lb-cyan);
  outline-offset: -2px;
}

.page-faq .faq-panel__body {
  padding: 0 1.05rem 1.05rem;
}

.page-faq .faq-panel__body p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--faq-body);
}

/* ---------- 更新节奏 ---------- */

.page-faq .faq-freq {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-freq__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .3rem;
  padding: .95rem 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-freq__key {
  font-family: var(--lb-font-mono);
  font-weight: 700;
  font-size: .92rem;
  line-height: 1.5;
  color: var(--lb-cyan);
}

.page-faq .faq-freq__val {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--faq-body);
}

/* ---------- 移动端章节 ---------- */

.page-faq .faq-mobile {
  display: grid;
  gap: 1.5rem;
}

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

.page-faq .faq-mobile__text > p {
  margin: 0 0 1rem;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-mobile__text > p:last-child {
  margin-bottom: 0;
}

/* ---------- 接入与纠错 ---------- */

.page-faq .faq-links {
  display: grid;
  gap: .85rem;
}

.page-faq .faq-linkcard {
  display: block;
  padding: 1.1rem 1.15rem;
  background: var(--faq-surface);
  box-shadow: inset 0 0 0 1px var(--faq-line);
  color: inherit;
  text-decoration: none;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: box-shadow .2s ease, background-color .2s ease;
}

.page-faq .faq-linkcard:hover,
.page-faq .faq-linkcard:focus-visible {
  background: rgba(47, 107, 79, .5);
  box-shadow: inset 0 0 0 1px var(--lb-line-orange);
  outline: none;
}

.page-faq .faq-linkcard__title {
  margin: 0 0 .45rem;
  font-family: var(--lb-font-display);
  font-weight: 800;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--lb-rice);
}

.page-faq .faq-linkcard__text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .faq-linkcard__go {
  display: inline-block;
  margin-top: .8rem;
  font-family: var(--lb-font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--lb-orange);
}

/* ---------- 联系方式 ---------- */

.page-faq .faq-contact {
  margin-top: 1.1rem;
  padding: 1.05rem 1.15rem;
  background: rgba(8, 18, 14, .72);
  box-shadow: inset 0 0 0 1px var(--faq-line);
  display: grid;
  gap: .5rem;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .9rem;
}

.page-faq .faq-contact__k {
  min-width: 3.4rem;
  font-family: var(--lb-font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lb-cyan-gray);
}

.page-faq .faq-contact__v {
  font-family: var(--lb-font-mono);
  font-size: .88rem;
  line-height: 1.6;
  color: var(--lb-rice);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: .35rem 0 0;
  padding-top: .7rem;
  border-top: 1px dashed var(--faq-line);
  font-size: .8rem;
  line-height: 1.72;
  color: var(--faq-body-dim);
}

.page-faq .faq-tail {
  margin: 1.15rem 0 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--faq-body-dim);
}

.page-faq .faq-tail a {
  color: var(--lb-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-tail a:hover,
.page-faq .faq-tail a:focus-visible {
  color: var(--lb-orange);
}

/* ---------- 返回顶部 ---------- */

.page-faq .faq-totop {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: none;
  padding: .6rem .95rem;
  border: 0;
  cursor: pointer;
  font-family: var(--lb-font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--lb-night);
  background: var(--lb-cyan);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.page-faq .faq-totop[data-visible] {
  display: block;
}

.page-faq .faq-totop:focus-visible {
  outline: 2px solid var(--lb-orange);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-hero__inner,
  .page-faq .faq-layout {
    padding-inline: 1.75rem;
  }

  .page-faq .faq-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem 1.5rem;
  }

  .page-faq .faq-freq__row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 1.5rem;
    align-items: baseline;
    padding: 1.05rem 0;
  }

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

  .page-faq .faq-step {
    grid-template-columns: 2.4rem minmax(0, 1fr);
    padding: 1.15rem 1.35rem;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-mobile {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 2.25rem;
    align-items: start;
  }

  .page-faq .faq-shot--portrait {
    margin-inline: 0 0;
    max-width: 300px;
  }
}

@media (min-width: 1000px) {
  .page-faq {
    padding-bottom: 5rem;
  }

  .page-faq .faq-hero {
    padding-top: 2.75rem;
    padding-bottom: 3.25rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--lb-header-h) + 1.25rem);
    padding: 1.15rem 1.1rem 1.3rem;
  }

  .page-faq .faq-block {
    padding-top: 2.75rem;
    margin-top: 2.75rem;
  }

  .page-faq .faq-shot {
    margin-top: 1.85rem;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-panel,
  .page-faq .faq-linkcard {
    transition: none;
  }
}
<<<END>>>