.page-faq {
  --faq-w: 1180px;
  --faq-pad: clamp(18px, 3.4vw, 44px);
  --faq-body: #33332C;
  --faq-num-col: 3.2rem;
  --faq-num-gap: clamp(10px, 1.6vw, 20px);
  background: var(--ink-900);
}

.page-faq .faq-shell {
  width: min(var(--faq-w), 100% - var(--faq-pad) * 2);
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 54px) 0 clamp(20px, 3.2vw, 34px);
  background:
    radial-gradient(circle at 84% 8%, rgba(201, 245, 63, .10), transparent 52%),
    radial-gradient(circle at 6% 92%, rgba(255, 122, 28, .08), transparent 46%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .crumbs {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-faq .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}

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

.page-faq .crumbs__sep {
  margin: 0 8px;
  color: var(--line-strong);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 42px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 34px);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__desc {
  margin: clamp(14px, 2.2vw, 20px) 0 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 16px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-hero__meta li:first-child {
  padding-left: 0;
  border-left: 0;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 19px;
  letter-spacing: .04em;
  color: var(--lime);
}

.page-faq .faq-hero__unit {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 2.8vw, 30px);
}

.page-faq .faq-hero__fig {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__fig::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--orange));
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  filter: contrast(1.06) saturate(.96);
}

/* ---------- 快速跳转 ---------- */

.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: clamp(24px, 3.4vw, 36px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump a {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink-900);
  background: var(--lime);
  border-color: var(--lime);
}

/* ---------- 暖纸阅读面 ---------- */

.page-faq .faq-paper {
  background: var(--paper);
  color: var(--ink-950);
  padding: clamp(30px, 5vw, 66px) 0 clamp(34px, 5.4vw, 72px);
}

.page-faq .faq-group {
  margin-top: clamp(32px, 4.6vw, 56px);
}

.page-faq .faq-group:first-child {
  margin-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-paper);
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-faq .faq-group__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--orange);
  white-space: nowrap;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.5vw, 27px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink-950);
}

/* ---------- 折叠面板 ---------- */

.page-faq .qa {
  border-bottom: 1px solid var(--line-paper);
}

.page-faq .qa__head {
  display: grid;
  grid-template-columns: var(--faq-num-col) 1fr auto;
  gap: var(--faq-num-gap);
  align-items: start;
  padding: clamp(16px, 2.2vw, 22px) 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s var(--ease);
}

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

.page-faq .qa__head:hover {
  background: rgba(26, 26, 24, .035);
}

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

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 19px);
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--ink-950);
  opacity: .38;
  transition: opacity .2s var(--ease), color .2s var(--ease);
}

.page-faq .qa[open] .qa__num {
  opacity: 1;
  color: var(--orange);
}

.page-faq .qa__q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16.5px, 2vw, 22px);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink-950);
}

.page-faq .qa__mark {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: .4em;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-950);
  transition: background-color .2s var(--ease), transform .24s var(--ease), opacity .24s var(--ease);
}

.page-faq .qa__mark::before {
  width: 16px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__mark::after {
  width: 1px;
  height: 16px;
  transform: translate(-50%, -50%);
}

.page-faq .qa[open] .qa__mark::before {
  background: var(--orange);
  height: 2px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 4px clamp(18px, 2.4vw, 26px);
  display: grid;
  gap: 12px;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .qa__body b {
  color: var(--ink-950);
  font-weight: 700;
}

.page-faq .qa__body a {
  color: var(--ink-950);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  transition: color .2s var(--ease);
}

.page-faq .qa__body a:hover {
  color: var(--orange);
}

.page-faq .qa-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .qa-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 章节配图 ---------- */

.page-faq .faq-fig {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--paper);
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 18 / 13;
  object-fit: cover;
}

.page-faq .faq-fig figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  line-height: 1.7;
  color: var(--ink-950);
  opacity: .65;
  padding: 10px 14px;
  border-top: 1px solid var(--line-paper);
}

/* ---------- 三条建议 ---------- */

.page-faq .faq-advice {
  margin-top: clamp(40px, 6vw, 76px);
  padding-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line-paper);
}

.page-faq .faq-advice__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-advice__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.5vw, 27px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink-950);
}

.page-faq .faq-advice__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-faq .faq-advice__item {
  position: relative;
  padding-top: 14px;
}

.page-faq .faq-advice__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-advice__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-advice__item p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--faq-body);
}

/* ---------- 页尾引导条 ---------- */

.page-faq .faq-cta {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
  padding: clamp(28px, 4.4vw, 54px) 0;
}

.page-faq .faq-cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .faq-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.06fr .94fr;
  }
}

@media (min-width: 720px) {
  .page-faq .qa__body {
    padding-left: calc(var(--faq-num-col) + var(--faq-num-gap) + 4px);
    padding-right: clamp(36px, 6vw, 90px);
    max-width: 78ch;
  }

  .page-faq .faq-fig {
    margin-left: calc(var(--faq-num-col) + var(--faq-num-gap) + 4px);
    max-width: 640px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-advice__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .page-faq .faq-advice__item {
    padding-top: 0;
  }

  .page-faq .faq-advice__item::before {
    display: none;
  }

  .page-faq .faq-advice__item:not(:last-child) {
    padding-right: clamp(20px, 2.6vw, 34px);
  }

  .page-faq .faq-advice__item + .faq-advice__item {
    border-left: 2px solid var(--orange);
    padding-left: clamp(20px, 2.6vw, 34px);
  }
}

@media (max-width: 560px) {
  .page-faq .qa__head {
    grid-template-columns: 2.4rem 1fr auto;
  }

  .page-faq .faq-hero__meta li {
    padding: 4px 12px;
  }

  .page-faq .faq-cta__inner {
    display: block;
  }

  .page-faq .faq-cta__acts {
    margin-top: 18px;
  }
}
<<<END>>>