.page-faq {
  --faq-index-w: 292px;
  background: var(--bg);
  color: var(--paper);
  padding-bottom: 88px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  position: relative;
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -14%;
  width: 56%;
  height: 170%;
  background: linear-gradient(155deg, rgba(200, 255, 61, 0.09), rgba(79, 211, 168, 0.04) 58%, rgba(10, 20, 16, 0) 80%);
  transform: skewX(-9deg);
  pointer-events: none;
}

.page-faq .faq-head > .container {
  position: relative;
  z-index: 1;
}

.page-faq .page-title {
  margin: 14px 0 0;
  max-width: 18ch;
  font-family: var(--font-head);
  font-size: var(--t-30);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: var(--t-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
}

.page-faq .faq-facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-facts-num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: var(--t-24);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--gold);
}

.page-faq .faq-facts-label {
  font-family: var(--font-body);
  font-size: var(--t-12);
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-top: 34px;
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: var(--t-12);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list li {
  flex: none;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--t-12);
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: var(--t-12);
  letter-spacing: 0.06em;
  color: var(--dim);
  transition: color 0.16s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--paper);
  border-color: var(--lime);
  background: var(--glass-strong);
}

.page-faq .faq-index-link:hover .faq-index-num,
.page-faq .faq-index-link:focus-visible .faq-index-num {
  color: var(--lime);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 88px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-h2 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: var(--t-24);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-h2-num {
  flex: none;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: var(--t-15);
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: var(--t-19);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 步骤条 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-faq .step-item:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .step-num {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: var(--t-24);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: var(--t-19);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .step-text {
  margin: 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: var(--t-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .step-text .link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--lime);
  padding-bottom: 1px;
}

.page-faq .step-text .link:hover,
.page-faq .step-text .link:focus-visible {
  color: var(--lime);
}

.page-faq .step-text .link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 提示带 ---------- */
.page-faq .tip-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 30px 0 0;
  padding: 18px 20px;
  background: var(--glass);
  border: 1px solid var(--line);
}

.page-faq .tip-band--solo {
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .tip-label {
  font-family: var(--font-num);
  font-size: var(--t-12);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-faq .tip-text {
  margin: 0;
  max-width: 68ch;
  font-family: var(--font-body);
  font-size: var(--t-15);
  line-height: 1.85;
  color: var(--paper);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 34px 0 0;
}

.page-faq .faq-figure .media-frame {
  display: block;
  aspect-ratio: auto;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-figure figcaption {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: var(--t-12);
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--dim);
}

/* ---------- 问答 ---------- */
.page-faq .qa-list {
  margin-top: 24px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-item {
  border-top: 1px solid var(--line);
  border-left: 2px solid transparent;
  padding-left: 16px;
  transition: border-color 0.16s var(--ease);
}

.page-faq .qa-item[open] {
  border-left-color: var(--lime);
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: var(--t-19);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--paper);
  transition: color 0.16s var(--ease);
}

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

.page-faq .qa-q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: var(--t-19);
  line-height: 1;
  color: var(--dim);
  transition: color 0.16s var(--ease);
}

.page-faq .qa-item[open] .qa-q {
  color: var(--lime);
}

.page-faq .qa-item[open] .qa-q::after {
  content: "−";
  color: var(--lime);
}

.page-faq .qa-q:hover::after,
.page-faq .qa-q:focus-visible::after {
  color: var(--paper);
}

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

.page-faq .qa-a {
  padding: 0 0 22px;
  max-width: 62ch;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: var(--t-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa-a p:last-child {
  margin-bottom: 0;
}

.page-faq .qa-a .link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--lime);
  padding-bottom: 1px;
}

.page-faq .qa-a .link:hover,
.page-faq .qa-a .link:focus-visible {
  color: var(--lime);
}

/* ---------- 中等屏 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-head {
    padding: 40px 0 52px;
  }

  .page-faq .page-title {
    font-size: var(--t-38);
  }

  .page-faq .step-item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 22px;
    padding: 24px 0;
  }

  .page-faq .step-num {
    font-size: var(--t-30);
  }

  .page-faq .tip-band {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 20px 24px;
  }

  .page-faq .tip-band--solo {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 宽屏：左右分栏，索引粘性 ---------- */
@media (min-width: 960px) {
  .page-faq .page-title {
    font-size: var(--t-48);
    max-width: 20ch;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
    padding-top: 52px;
  }

  .page-faq .faq-index-inner {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 2px;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-list li {
    flex: none;
  }

  .page-faq .faq-index-link {
    border: 0;
    border-left: 2px solid var(--line);
    background: transparent;
    padding: 10px 14px;
    white-space: normal;
    font-size: var(--t-15);
    line-height: 1.55;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    background: var(--glass);
    border-left-color: var(--lime);
  }

  .page-faq .faq-section {
    padding-top: 46px;
  }

  .page-faq .faq-h2 {
    font-size: var(--t-30);
  }

  .page-faq .faq-lead {
    font-size: var(--t-19);
  }

  .page-faq .faq-figure {
    margin-top: 44px;
  }

  .page-faq .qa-q {
    padding: 20px 0;
  }
}
<<<END>>>