.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 20px) 0 64px;
  background:
    radial-gradient(130% 100% at 84% -12%, rgba(31, 95, 168, 0.6) 0%, rgba(10, 22, 38, 0) 60%),
    var(--ink-900);
  color: var(--paper);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 28px));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -8%;
  top: 22%;
  width: 56%;
  height: 1px;
  background: linear-gradient(90deg, rgba(169, 240, 90, 0), var(--green));
  transform: rotate(-7deg);
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .breadcrumb-list,
.page-faq .faq-hero .breadcrumb-list a {
  color: var(--paper-dim);
}

.page-faq .faq-hero .breadcrumb-list a {
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb-list a:hover,
.page-faq .faq-hero .breadcrumb-list a:focus-visible {
  color: var(--orange-soft);
}

.page-faq .faq-hero-eyebrow {
  margin: 34px 0 0;
  color: var(--orange);
  letter-spacing: 0.22em;
  font-size: 12px;
}

.page-faq .faq-hero-title {
  margin: 16px 0 0;
  max-width: 22ch;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero-lede {
  margin: 24px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* 顶部分组轨 */
.page-faq .faq-rail {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.page-faq .faq-rail-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line-light);
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-rail-link::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green);
  transition: width 0.3s var(--ease);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible,
.page-faq .faq-rail-link.is-active,
.page-faq .faq-rail-link[aria-current] {
  color: var(--paper);
}

.page-faq .faq-rail-link:hover::before,
.page-faq .faq-rail-link.is-active::before,
.page-faq .faq-rail-link[aria-current]::before {
  width: 100%;
}

.page-faq .faq-rail-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--green);
  flex: 0 0 auto;
}

@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 32px) 0 88px;
  }

  .page-faq .faq-hero-lede {
    font-size: 17px;
  }

  .page-faq .faq-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 52px;
  }
}

/* 主体分区 */
.page-faq .faq-body {
  background: var(--paper);
  padding: 48px 0 56px;
}

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

.page-faq .faq-side {
  margin-bottom: 34px;
}

.page-faq .faq-side-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

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

.page-faq .faq-side-title {
  display: none;
}

.page-faq .faq-side-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--rock);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-side-link .data-num {
  font-size: 12px;
  color: var(--orange);
}

.page-faq .faq-side-link:hover,
.page-faq .faq-side-link:focus-visible,
.page-faq .faq-side-link.is-active,
.page-faq .faq-side-link[aria-current] {
  border-color: var(--orange);
  color: var(--text);
  background: var(--sand);
}

.page-faq .faq-group {
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group:last-of-type {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-group-eyebrow {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-group-title {
  margin: 10px 0 0;
  font-size: 24px;
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-group-lede {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

/* 图与上手步骤 */
.page-faq .faq-figure {
  margin: 26px 0 6px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0;
  background: var(--sand);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock);
}

.page-faq .faq-login-grid {
  display: grid;
  gap: 22px;
  margin: 26px 0 4px;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-step-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--orange);
  padding-top: 2px;
}

.page-faq .faq-step-text {
  font-size: 15px;
  line-height: 1.72;
  color: var(--rock);
}

.page-faq .faq-step-text strong {
  display: block;
  margin-bottom: 2px;
  font-size: 16px;
  color: var(--text);
}

/* 手风琴问答 */
.page-faq .faq-list {
  margin-top: 10px;
}

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

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

.page-faq .faq-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  transition: color 0.16s var(--ease);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  color: var(--blue-600);
}

.page-faq .faq-item[open] > .faq-q {
  color: var(--ink-800);
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .faq-qtext {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-sign {
  flex: 0 0 auto;
  align-self: center;
  position: relative;
  width: 15px;
  height: 15px;
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .faq-sign::before {
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-sign::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.page-faq .faq-item[open] > .faq-q .faq-sign::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 0 20px 32px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--rock);
}

.page-faq .faq-item[open] > .faq-a {
  animation: faq-drop 0.3s var(--ease);
}

@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 760px) {
  .page-faq .faq-body {
    padding: 64px 0 72px;
  }

  .page-faq .faq-group-title {
    font-size: 30px;
  }

  .page-faq .faq-q {
    font-size: 20px;
    padding: 20px 0;
  }

  .page-faq .faq-a {
    padding-left: 38px;
  }

  .page-faq .faq-login-grid {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-login-grid .faq-figure {
    margin-top: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    padding: 80px 0 88px;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-side {
    margin-bottom: 0;
  }

  .page-faq .faq-side-inner {
    display: grid;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-side-title {
    display: block;
    margin: 0 0 14px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.16em;
    color: var(--rock);
  }

  .page-faq .faq-side-link {
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 14px 0 14px 16px;
    font-size: 15px;
    white-space: normal;
    background: transparent;
    transition: border-color 0.18s var(--ease), color 0.18s var(--ease), padding-left 0.18s var(--ease);
  }

  .page-faq .faq-side-link:hover,
  .page-faq .faq-side-link:focus-visible,
  .page-faq .faq-side-link.is-active,
  .page-faq .faq-side-link[aria-current] {
    border-left-color: var(--orange);
    background: transparent;
    color: var(--text);
    padding-left: 22px;
  }
}

/* 术语速查 */
.page-faq .faq-terms {
  position: relative;
  background:
    radial-gradient(90% 80% at 12% 6%, rgba(31, 95, 168, 0.42) 0%, rgba(10, 22, 38, 0) 62%),
    var(--ink-900);
  color: var(--paper);
  padding: 88px 0 64px;
  clip-path: polygon(0 32px, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-terms .eyebrow {
  margin: 0;
  color: var(--orange-soft);
  letter-spacing: 0.2em;
  font-size: 12px;
}

.page-faq .faq-terms-title {
  margin: 12px 0 0;
  max-width: 24ch;
  font-size: 25px;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .term-grid {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .term-card {
  border: 1px solid var(--line-light);
  background: rgba(246, 243, 234, 0.04);
  padding: 18px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .term-card:hover,
.page-faq .term-card:focus-within {
  border-color: rgba(255, 106, 43, 0.5);
  background: rgba(246, 243, 234, 0.07);
}

.page-faq .term-inner {
  display: grid;
  gap: 10px;
}

.page-faq .term-face--front {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .term-idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--green);
}

.page-faq .term-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .term-face--back p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

@media (min-width: 640px) {
  .page-faq .term-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-terms-title {
    font-size: 30px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-terms {
    padding: 104px 0 84px;
  }

  .page-faq .term-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .term-card {
    position: relative;
    height: 168px;
    padding: 0;
    border: 0;
    background: transparent;
    perspective: 900px;
  }

  .page-faq .term-card:hover,
  .page-faq .term-card:focus-within {
    border: 0;
    background: transparent;
  }

  .page-faq .term-inner {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.55s var(--ease);
  }

  .page-faq .term-card:hover .term-inner,
  .page-faq .term-card:focus-within .term-inner {
    transform: rotateY(180deg);
  }

  .page-faq .term-face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 8px;
    padding: 20px;
    border: 1px solid var(--line-light);
    background: var(--ink-900);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }

  .page-faq .term-face--back {
    transform: rotateY(180deg);
    border-color: rgba(255, 106, 43, 0.45);
    background: rgba(18, 48, 90, 0.94);
  }
}

/* 还没解决 */
.page-faq .faq-reach {
  background: var(--paper);
  padding: 52px 0 64px;
}

.page-faq .faq-reach-card {
  background: var(--sand);
  padding: 28px 22px 30px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-reach-main .eyebrow {
  margin: 0;
  color: var(--clay);
  letter-spacing: 0.18em;
  font-size: 12px;
}

.page-faq .faq-reach-title {
  margin: 10px 0 0;
  max-width: 22ch;
  font-size: 23px;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-reach-text {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-faq .faq-reach-side {
  margin-top: 24px;
}

.page-faq .faq-reach-btn {
  display: inline-block;
}

.page-faq .faq-reach-links {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.page-faq .faq-reach-links a {
  font-size: 14px;
  color: var(--ink-800);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-reach-links a:hover,
.page-faq .faq-reach-links a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

@media (min-width: 860px) {
  .page-faq .faq-reach {
    padding: 76px 0 88px;
  }

  .page-faq .faq-reach-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 48px;
    align-items: center;
    padding: 44px 48px 46px;
  }

  .page-faq .faq-reach-title {
    font-size: 28px;
  }

  .page-faq .faq-reach-side {
    margin-top: 0;
  }

  .page-faq .faq-reach-links {
    margin-top: 24px;
    display: grid;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] > .faq-a {
    animation: none;
  }

  .page-faq .term-inner {
    transition: none;
  }

  .page-faq .faq-rail-link::before,
  .page-faq .faq-sign::before,
  .page-faq .faq-sign::after,
  .page-faq .faq-side-link {
    transition: none;
  }
}
<<<END>>>