.page-faq {
  --faq-rule: var(--ink-700);
  --faq-dot: 9px;
  --faq-line-x: 4px;
  padding-bottom: clamp(40px, 6vw, 88px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 44px) 0 clamp(40px, 7vw, 88px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -22%;
  width: min(680px, 86vw);
  aspect-ratio: 1 / 1;
  background: linear-gradient(140deg, rgba(217, 246, 63, 0.22), rgba(255, 138, 43, 0.08) 58%, transparent 78%);
  clip-path: polygon(30% 0, 100% 0, 100% 68%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lime-500), var(--ink-700) 45%, transparent);
  opacity: 0.6;
}

.page-faq .faq-hero__shell {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-faq .faq-hero__lead .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1.14;
  font-size: clamp(30px, 6.4vw, 58px);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--mist-200);
  max-width: 58ch;
  margin: 0;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(11, 51, 42, 0.92), rgba(6, 32, 25, 0.5));
}

.page-faq .faq-hero__stat:nth-child(2) {
  border-color: rgba(217, 246, 63, 0.5);
  background: linear-gradient(158deg, rgba(217, 246, 63, 0.16), rgba(6, 32, 25, 0.6));
}

.page-faq .faq-hero__stat:nth-child(3) {
  border-color: rgba(255, 138, 43, 0.42);
}

.page-faq .faq-hero__stat .stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--lime-500);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__stat:nth-child(3) .stat-value {
  color: var(--amber-500);
}

.page-faq .faq-hero__plus {
  font-size: 0.62em;
  vertical-align: super;
}

.page-faq .faq-hero__stat-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--mist-200);
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-nav__shell {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-nav__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.01em;
  font-size: clamp(24px, 3.4vw, 36px);
  margin: 0 0 12px;
}

.page-faq .faq-nav__head > p {
  color: var(--mist-200);
  font-size: 16px;
  line-height: 1.78;
  max-width: 52ch;
  margin: 0;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-faq .faq-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--ink-700);
  color: var(--mist-200);
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--lime-500);
  border-color: var(--lime-500);
  color: var(--char-900);
  font-weight: 700;
  transform: translateY(-2px);
}

.page-faq .faq-chip:focus-visible {
  outline: 3px solid var(--lime-300);
  outline-offset: 2px;
}

.page-faq .faq-nav__hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-200);
  opacity: 0.85;
}

.page-faq .faq-nav__figure {
  margin: 0;
}

.page-faq .faq-nav__figure img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 分组通用 ---------- */
.page-faq .faq-group {
  position: relative;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: 34px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: var(--faq-line-x);
  top: 30px;
  bottom: -30px;
  width: 1px;
  background: linear-gradient(var(--lime-500), var(--ink-700) 60%, transparent);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: var(--faq-dot);
  height: var(--faq-dot);
  border-radius: 50%;
  background: var(--lime-500);
  box-shadow: 0 0 0 5px rgba(217, 246, 63, 0.14);
}

.page-faq .faq-group__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--amber-500);
  margin-bottom: 8px;
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.01em;
  font-size: clamp(24px, 3.4vw, 36px);
  margin: 0 0 10px;
}

.page-faq .faq-group__head p {
  margin: 0;
  color: var(--mist-200);
  font-size: 16px;
  line-height: 1.78;
  max-width: 56ch;
}

/* ---------- 赛后节奏图 ---------- */
.page-faq .faq-lane {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-lane img {
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-rhythm {
  list-style: none;
  margin: 0 0 clamp(28px, 4vw, 44px);
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-rhythm__step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-700);
  background: rgba(6, 32, 25, 0.4);
}

.page-faq .faq-rhythm__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 4px 9px;
  border-radius: var(--radius-pill);
  background: var(--lime-500);
  color: var(--char-900);
  font-weight: 700;
}

.page-faq .faq-rhythm__step:nth-child(3) .faq-rhythm__tag {
  background: var(--amber-500);
  color: var(--char-900);
}

.page-faq .faq-rhythm__text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist-200);
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  position: relative;
  margin-top: clamp(8px, 2vw, 16px);
}

.page-faq .faq-list::before {
  content: "";
  position: absolute;
  left: var(--faq-line-x);
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--ink-700), var(--ink-700) 70%, transparent);
}

.page-faq .faq-list--tight {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-item {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 24px 18px 30px;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper-50);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: var(--faq-dot);
  height: var(--faq-dot);
  border-radius: 50%;
  background: var(--ink-700);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime-500);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item summary:hover {
  color: var(--lime-300);
  background: rgba(217, 246, 63, 0.05);
}

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--lime-500);
  outline-offset: -3px;
}

.page-faq .faq-item[open] summary {
  color: var(--lime-500);
}

.page-faq .faq-item[open] summary::before {
  background: var(--lime-500);
  box-shadow: 0 0 0 5px rgba(217, 246, 63, 0.16);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--lime-300);
}

.page-faq .faq-item__body {
  padding: 0 24px 22px 30px;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist-200);
  max-width: 66ch;
}

.page-faq .faq-item__body a {
  color: var(--lime-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover {
  color: var(--lime-300);
}

/* ---------- 纠错两栏 ---------- */
.page-faq .faq-group--feedback .faq-group__head::before {
  background: linear-gradient(var(--amber-500), var(--ink-700) 60%, transparent);
}

.page-faq .faq-compare {
  display: grid;
  gap: 14px;
  margin-top: clamp(6px, 1.6vw, 14px);
}

.page-faq .faq-compare__col {
  padding: 20px 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-700);
  background: linear-gradient(152deg, rgba(11, 51, 42, 0.72), rgba(6, 32, 25, 0.4));
}

.page-faq .faq-compare__col--need {
  border-color: rgba(217, 246, 63, 0.55);
  background: linear-gradient(152deg, rgba(217, 246, 63, 0.15), rgba(6, 32, 25, 0.5));
}

.page-faq .faq-compare__col h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(17px, 2vw, 20px);
  margin: 0 0 14px;
  color: var(--paper-50);
}

.page-faq .faq-compare__col--need h3 {
  color: var(--lime-500);
}

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

.page-faq .faq-compare__col li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist-200);
}

.page-faq .faq-compare__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--lime-500);
}

.page-faq .faq-compare__col--skip li::before {
  background: var(--ink-700);
}

/* ---------- 尾段 ---------- */
.page-faq .faq-cta {
  position: relative;
  padding-top: clamp(40px, 6vw, 76px);
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-700) 25%, var(--lime-500) 60%, transparent);
}

.page-faq .faq-cta__shell {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-faq .faq-cta__text h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(24px, 3.6vw, 38px);
  margin: 0 0 12px;
  max-width: 20ch;
}

.page-faq .faq-cta__text p {
  margin: 0;
  color: var(--mist-200);
  font-size: 16px;
  line-height: 1.8;
  max-width: 56ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__stats {
    gap: 12px;
  }

  .page-faq .faq-hero__stat:nth-child(2) {
    transform: translateY(-12px);
  }

  .page-faq .faq-hero__stat:nth-child(4) {
    transform: translateY(12px);
  }

  .page-faq .faq-rhythm {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    position: relative;
  }

  .page-faq .faq-rhythm__step {
    flex-direction: column;
    gap: 8px;
    border: none;
    border-radius: 0;
    background: none;
    padding: 0 16px 0 0;
    position: relative;
  }

  .page-faq .faq-rhythm__step::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: -14px;
    width: 100%;
    height: 1px;
    background: var(--ink-700);
  }

  .page-faq .faq-rhythm__step::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -18px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--lime-500);
  }

  .page-faq .faq-rhythm__step:nth-child(3)::after {
    background: var(--amber-500);
  }

  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-nav__shell {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  }

  .page-faq .faq-cta__shell {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }

  .page-faq .faq-group__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: clamp(24px, 4vw, 56px);
    align-items: end;
    padding-left: 40px;
  }

  .page-faq .faq-group__head::after {
    top: 14px;
  }

  .page-faq .faq-group__head::before {
    left: 8px;
  }

  .page-faq .faq-group__index {
    grid-column: 1 / -1;
  }

  .page-faq .faq-group__head h2 {
    margin-bottom: 0;
  }

  .page-faq .faq-group__head p {
    padding-bottom: 4px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hero__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(36px, 5vw, 72px);
  }
}
<<<END>>>