.page-faq {
  --faq-line: rgba(159, 179, 200, 0.24);
  --faq-line-strong: rgba(159, 179, 200, 0.52);
  --faq-body-text: rgba(244, 241, 232, 0.85);
  display: block;
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .faq-crumb {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(10px, 2vw, 18px);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5.5vw, 72px) 0 clamp(34px, 5.5vw, 76px);
  border-bottom: 1px solid var(--faq-line);
  background:
    linear-gradient(118deg, var(--green) 0%, var(--night) 48%, var(--indigo) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: 64%;
  height: 155%;
  background: linear-gradient(200deg, rgba(200, 247, 81, 0.15), transparent 62%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(24px, 4vw, 48px);
  width: clamp(60px, 12vw, 150px);
  height: 3px;
  background: var(--lime);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

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

.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  max-width: 20ch;
  font-size: clamp(29px, 4.6vw, 52px);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero h1 strong {
  display: inline-block;
  font-weight: 800;
  color: var(--lime);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 24px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-faq .faq-meta span {
  position: relative;
  padding-left: 14px;
}

.page-faq .faq-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 1px;
  background: var(--lime);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--faq-line-strong);
  background: linear-gradient(150deg, var(--indigo), var(--night) 72%);
}

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

/* 索引 + 正文 双栏 */
.page-faq .faq-index-wrap {
  padding-top: clamp(34px, 5vw, 64px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 48px);
  align-items: start;
}

/* 主题索引 */
.page-faq .faq-toc {
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--faq-line);
  background: rgba(14, 59, 46, 0.34);
}

.page-faq .faq-toc__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__list li {
  flex: none;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  border-color: rgba(200, 247, 81, 0.6);
  color: var(--lime);
  background: rgba(200, 247, 81, 0.07);
}

.page-faq .faq-toc__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--mist);
}

.page-faq .faq-toc__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* 问答主体 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(34px, 4.6vw, 62px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 110px;
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--faq-line-strong);
}

.page-faq .faq-group__head .index-num {
  flex: none;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-group__head .section-title {
  margin: 0;
  font-size: clamp(20px, 2.3vw, 26px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-group__intro {
  margin: 14px 0 18px;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 问答条目 */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--faq-line);
  background: rgba(11, 27, 43, 0.55);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--faq-line-strong);
}

.page-faq .qa[open] {
  border-color: rgba(200, 247, 81, 0.55);
  background: rgba(14, 59, 46, 0.48);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1;
  color: var(--lime);
  border: 1px solid rgba(200, 247, 81, 0.45);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  background: rgba(200, 247, 81, 0.16);
}

.page-faq .qa__idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

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

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

.page-faq .qa__a {
  padding: 0 16px 18px;
}

.page-faq .qa__a > p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .qa__a > p + p {
  margin-top: 10px;
}

.page-faq .qa__a .link {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 步骤 */
.page-faq .qa__steps {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  max-width: 34em;
}

.page-faq .qa__steps li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-body-text);
}

.page-faq .qa__step-n {
  height: 20px;
  margin-top: 3px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 20px;
  text-align: center;
}

/* 章节配图 */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--faq-line);
}

/* 联系卡片 */
.page-faq .faq-help {
  display: grid;
  gap: 20px;
  margin-top: 18px;
  padding: clamp(20px, 3vw, 32px);
  border: 2px solid var(--faq-line-strong);
  background: linear-gradient(140deg, rgba(14, 59, 46, 0.72), rgba(42, 35, 80, 0.62));
}

.page-faq .faq-help__title {
  margin: 0 0 10px;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-help__text {
  margin: 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-help__list {
  list-style: none;
  display: grid;
  gap: 7px;
  margin: 16px 0 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.page-faq .faq-help__label {
  flex: none;
  min-width: 5em;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .faq-help .btn {
  justify-self: start;
  align-self: center;
  white-space: nowrap;
}

/* 中等屏 */
@media (min-width: 760px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* 桌面：左索引常驻 + 右问答 */
@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .page-faq .faq-layout {
    grid-template-columns: 246px minmax(0, 1fr);
    gap: clamp(32px, 3.6vw, 56px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 112px;
    padding: 22px 20px;
  }

  .page-faq .faq-toc__list {
    display: block;
    margin-top: 14px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-toc__list li {
    display: block;
  }

  .page-faq .faq-toc__list li + li {
    border-top: 1px solid var(--faq-line);
  }

  .page-faq .faq-toc__list a {
    padding: 11px 4px 11px 10px;
    border: 0;
    border-left: 2px solid transparent;
    white-space: normal;
    line-height: 1.45;
  }

  .page-faq .faq-toc__list a:hover,
  .page-faq .faq-toc__list a:focus-visible {
    background: rgba(200, 247, 81, 0.07);
    border-left-color: var(--lime);
  }

  .page-faq .qa__q {
    padding: 17px 20px;
  }

  .page-faq .qa__a {
    padding: 0 20px 20px;
  }

  .page-faq .faq-hero__figure {
    align-self: end;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
  }
}

/* 动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .faq-toc__list a {
    transition: none;
  }
}
<<<END>>>