.page-faq {
  --faq-gap: clamp(20px, 3vw, 34px);
  position: relative;
  padding: calc(var(--header-space) + 20px) 0 clamp(64px, 9vw, 120px);
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 84px 84px;
  color: var(--mist);
  font-family: var(--sans);
  overflow-x: hidden;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--lime);
}

/* ---------- 首屏 ---------- */
.faq-hero {
  position: relative;
  max-width: 940px;
  margin-bottom: clamp(30px, 5vw, 58px);
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 14px;
}

.faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--display);
  font-size: clamp(28px, 6vw, 52px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.005em;
  color: var(--white);
}

.faq-hero__lead {
  max-width: 62ch;
  margin: 0 0 24px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(242, 245, 241, 0.8);
}

.faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-quick a {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease),
    background 0.25s var(--ease);
}

.faq-quick a:hover {
  border-color: var(--line-lime);
  color: var(--lime);
  background: rgba(200, 255, 61, 0.07);
}

/* ---------- 左侧索引 + 右侧正文 ---------- */
.faq-shell {
  display: grid;
  gap: var(--faq-gap);
}

.faq-rail {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  padding: 14px;
}

.faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
}

.faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.faq-rail__list::-webkit-scrollbar {
  display: none;
}

.faq-rail__list li {
  flex: 0 0 auto;
}

.faq-rail .rail__item {
  display: block;
  padding: 9px 13px;
  border-radius: 10px;
  border-left: 2px solid transparent;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.faq-rail .rail__item:hover {
  color: var(--mist);
  background: rgba(200, 255, 61, 0.07);
}

.faq-rail .rail__item.is-active {
  color: var(--lime);
  background: rgba(200, 255, 61, 0.1);
  border-left-color: var(--lime);
}

.faq-body {
  min-width: 0;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

/* ---------- 章节 ---------- */
.faq-section {
  scroll-margin-top: calc(var(--header-space) + 24px);
  border-top: 1px solid var(--line);
  padding-top: clamp(24px, 3.6vw, 38px);
}

.faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.faq-section__head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(19px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 0.005em;
  color: var(--white);
}

.page-faq .index-tag {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.faq-section__lead {
  max-width: 68ch;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 245, 241, 0.78);
}

.faq-section__lead a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
}

/* ---------- 图 ---------- */
.faq-figure {
  margin: 0 0 20px;
}

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

.faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

/* ---------- 步骤卡 ---------- */
.step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
  transition: border-color 0.25s var(--ease);
}

.step:hover {
  border-color: var(--line-lime);
}

.step__num {
  display: block;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--lime);
  text-decoration: none;
}

.step__num:hover {
  text-decoration: underline;
}

.step__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(242, 245, 241, 0.76);
}

/* ---------- 流程编号清单 ---------- */
.flow-list {
  list-style: none;
  counter-reset: flow;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.flow-list li {
  counter-increment: flow;
  position: relative;
  padding-left: 42px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(242, 245, 241, 0.78);
}

.flow-list li::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
}

/* ---------- 核对清单 ---------- */
.check-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 245, 241, 0.8);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--lime);
  border-radius: 2px;
}

.card--warn .check-list li::before {
  border-color: var(--orange);
}

/* ---------- 栅格与卡片 ---------- */
.faq-grid-2,
.faq-grid-3 {
  display: grid;
  gap: 12px;
}

.page-faq .card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
}

.page-faq .card__title {
  margin: 10px 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .card__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(242, 245, 241, 0.76);
}

.page-faq .card--warn {
  border-color: var(--line-warn);
  background: linear-gradient(180deg, rgba(255, 122, 61, 0.08), var(--deep));
}

.page-faq .card .btn {
  margin-top: 6px;
}

/* ---------- 数据焦点 ---------- */
.faq-stat-row {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}

.page-faq .stat {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(200, 255, 61, 0.07), rgba(26, 42, 38, 0.62));
}

.page-faq .stat__value {
  display: block;
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-faq .stat__label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 折叠补充 ---------- */
.faq-more {
  margin-top: 16px;
  padding: 0 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: rgba(26, 42, 38, 0.5);
}

.faq-more summary {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--lime);
}

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

.faq-more summary::before {
  content: "+";
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--lime);
}

.faq-more[open] summary::before {
  content: "–";
}

.faq-more p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 245, 241, 0.78);
}

.faq-more a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .faq-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 1000px) {
  .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 66px);
    align-items: start;
  }

  .faq-rail {
    position: sticky;
    top: calc(var(--header-space) + 20px);
  }

  .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .faq-rail__list li {
    flex: none;
  }

  .faq-rail .rail__item {
    white-space: normal;
  }
}

@media (max-width: 560px) {
  .step {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
  }

  .step__num {
    font-size: 17px;
  }

  .flow-list li {
    padding-left: 34px;
  }

  .faq-section__head {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>