.page-faq {
  --faq-gap: clamp(24px, 4vw, 56px);
  background: var(--ink);
  color: var(--score);
}

.page-faq .faq-shell {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(20px, 4vw, 48px) var(--gutter) clamp(48px, 8vw, 96px);
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--smoke);
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumbs a {
  color: var(--smoke);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

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

/* 顶部刻度尺 */
.page-faq .faq-rule {
  height: 10px;
  border-top: 3px solid var(--pitch);
  background: repeating-linear-gradient(90deg, var(--ink-line) 0 1px, transparent 1px 16px);
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 14px;
  max-width: 980px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(29px, 5.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--score);
  max-width: 20ch;
}

.page-faq .faq-lead {
  margin: 0;
  font-family: var(--f-body);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--smoke);
  max-width: 66ch;
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3.5vw, 38px) 0 0;
  padding: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.page-faq .faq-stat {
  margin: 0;
  padding: clamp(14px, 2vw, 20px);
  background: var(--ink-soft);
}

.page-faq .faq-stat-num {
  margin: 0;
  display: block;
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1;
  color: var(--whistle);
}

.page-faq .faq-stat-num--mint {
  color: var(--mint);
}

.page-faq .faq-stat-unit {
  font-size: 0.4em;
  letter-spacing: 0.08em;
  margin-left: 6px;
  color: var(--smoke);
}

.page-faq .faq-stat-label {
  margin: 0 0 8px;
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--smoke);
}

/* 顶部氛围图 */
.page-faq .faq-banner {
  --ratio: 42%;
  margin: clamp(26px, 4.5vw, 54px) 0 0;
  border-left: 4px solid var(--pitch);
  overflow: hidden;
}

.page-faq .faq-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-faq .faq-banner .media-caption {
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--smoke);
}

/* 双栏骨架 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(30px, 5vw, 62px);
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 72px);
    align-items: start;
  }
}

/* 左侧索引 */
.page-faq .faq-rail {
  position: relative;
}

@media (min-width: 1000px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 40px;
  }
}

.page-faq .faq-index {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  border-left: 1px solid var(--ink-line);
}

.page-faq .faq-index li {
  position: relative;
}

.page-faq .faq-index a {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 0 10px 16px;
  font-family: var(--f-body);
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--smoke);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}

.page-faq .faq-index a::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  width: 3px;
  height: 14px;
  transform: translateY(-50%);
  background: var(--ink-line);
  transition: background var(--dur-1) var(--ease), height var(--dur-1) var(--ease);
}

.page-faq .faq-index a:hover {
  color: var(--score);
  background: rgba(15, 122, 76, 0.1);
}

.page-faq .faq-index a:hover::before {
  background: var(--whistle);
  height: 24px;
}

.page-faq .faq-idx-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--pitch);
}

/* 玻璃分类标签条 */
.page-faq .faq-tabs {
  position: sticky;
  top: 64px;
  z-index: 6;
  display: flex;
  gap: 6px;
  margin-bottom: clamp(18px, 3vw, 30px);
  padding: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  background: rgba(36, 48, 43, 0.74);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass);
}

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

.page-faq .faq-tabs a {
  flex: 0 0 auto;
  padding: 7px 12px;
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--smoke);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.page-faq .faq-tabs a:hover {
  color: var(--ink);
  background: var(--whistle);
  border-color: var(--whistle);
}

.page-faq .faq-tabs a:focus-visible {
  outline: 2px solid var(--whistle);
  outline-offset: 2px;
}

@media (min-width: 960px) {
  .page-faq .faq-tabs {
    top: 20px;
  }
}

/* 分组 */
.page-faq .faq-section {
  scroll-margin-top: 130px;
  padding-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--ink-line);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .faq-section:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  align-items: start;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-faq .faq-section-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 0.9;
  color: var(--pitch);
}

.page-faq .faq-section h2 {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 30px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--score);
}

.page-faq .faq-section-sub {
  margin: 8px 0 0;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--smoke);
  max-width: 62ch;
}

/* 问答折叠 */
.page-faq .qa-list {
  border-bottom: 1px solid var(--ink-line);
}

.page-faq .qa {
  border: 1px solid var(--ink-line);
  border-bottom: none;
  background: var(--ink-soft);
  transition: border-color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}

.page-faq .qa[open] {
  border-color: var(--pitch);
  background: linear-gradient(90deg, rgba(15, 122, 76, 0.16), rgba(16, 58, 92, 0.06) 62%, transparent);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: start;
  padding: clamp(14px, 2vw, 20px) clamp(14px, 2vw, 22px);
  cursor: pointer;
  list-style: none;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.45;
  color: var(--score);
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}

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

.page-faq .qa > summary:hover {
  background: rgba(15, 122, 76, 0.14);
}

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

.page-faq .qa > summary::after {
  content: "+";
  font-family: var(--f-num);
  font-size: 20px;
  line-height: 1.2;
  text-align: right;
  color: var(--pitch);
  transition: color var(--dur-1) var(--ease);
}

.page-faq .qa[open] > summary::after {
  content: "–";
  color: var(--whistle);
}

.page-faq .qa-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--smoke);
  transition: color var(--dur-1) var(--ease);
}

.page-faq .qa[open] .qa-num {
  color: var(--mint);
}

.page-faq .qa-q {
  display: block;
}

.page-faq .qa-body {
  padding: 0 clamp(14px, 2vw, 22px) clamp(18px, 2.4vw, 26px);
  font-family: var(--f-body);
  font-size: clamp(14.5px, 1.6vw, 16px);
  line-height: 1.78;
  color: var(--smoke);
}

.page-faq .qa-body p {
  margin: 0 0 10px;
  max-width: 70ch;
}

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

.page-faq .qa-body strong {
  color: var(--score);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-faq .qa-body a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--pitch);
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.page-faq .qa-body a:hover {
  color: var(--whistle);
  border-bottom-color: var(--whistle);
}

@media (min-width: 720px) {
  .page-faq .qa-body {
    padding-left: 74px;
  }
}

/* 工具章节配图 */
.page-faq .faq-aside-figure {
  --ratio: 55%;
  margin: clamp(20px, 3vw, 32px) 0 0;
  border-left: 4px solid var(--canal);
  overflow: hidden;
}

.page-faq .faq-aside-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-aside-figure .media-caption {
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--smoke);
}

/* 版本迭代记录 */
.page-faq .faq-versions {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: ver;
}

.page-faq .faq-version {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: clamp(12px, 2vw, 26px);
  padding: clamp(15px, 2.2vw, 22px) 0;
  border-top: 1px solid var(--ink-line);
}

.page-faq .faq-version:last-child {
  border-bottom: 1px solid var(--ink-line);
}

.page-faq .faq-version-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  color: var(--smoke);
  transition: color var(--dur-1) var(--ease);
}

.page-faq .faq-version:last-child .faq-version-num {
  color: var(--whistle);
}

.page-faq .faq-version h3 {
  margin: 0 0 6px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--score);
}

.page-faq .faq-version p {
  margin: 0;
  font-family: var(--f-body);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--smoke);
  max-width: 66ch;
}

.page-faq .faq-version:hover {
  background: rgba(16, 58, 92, 0.16);
}

.page-faq .faq-version:hover .faq-version-num {
  color: var(--mint);
}

/* 底部引导 */
.page-faq .faq-cta {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(38px, 6vw, 76px);
  padding: clamp(22px, 3.4vw, 40px);
  background: linear-gradient(105deg, var(--canal), var(--ink) 72%);
  border-left: 6px solid var(--whistle);
}

@media (min-width: 860px) {
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

.page-faq .faq-cta h2 {
  margin: 10px 0 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 30px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--score);
}

.page-faq .faq-cta p {
  margin: 10px 0 0;
  font-family: var(--f-body);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--smoke);
  max-width: 56ch;
}

.page-faq .faq-cta .btn {
  justify-self: start;
  white-space: nowrap;
}

@media (min-width: 860px) {
  .page-faq .faq-cta .btn {
    justify-self: end;
  }
}

/* 窄屏收口 */
@media (max-width: 719px) {
  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-section-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .page-faq .faq-section-num {
    font-size: 30px;
  }

  .page-faq .faq-banner {
    --ratio: 58%;
  }

  .page-faq .faq-aside-figure {
    --ratio: 70%;
  }
}
</PAGE_CSS>>>