.page-faq {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 封面 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--line);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(255, 107, 44, 0.22), transparent 56%),
    radial-gradient(92% 82% at 0% 100%, rgba(30, 144, 255, 0.16), transparent 62%),
    var(--ink);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(242, 245, 249, 0.16) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: 0.45;
  -webkit-mask-image: linear-gradient(162deg, #000 0%, transparent 64%);
  mask-image: linear-gradient(162deg, #000 0%, transparent 64%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(18px, 3vw, 30px) clamp(30px, 5vw, 56px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.5vw, 40px);
  align-items: end;
  margin-top: clamp(16px, 3vw, 28px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.page-faq .faq-hero__lede {
  margin-top: 16px;
  max-width: 48ch;
  color: var(--silver);
  line-height: 1.85;
}

.page-faq .faq-hero__chips {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 图片框 ---------- */
.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-hero__figure img {
  aspect-ratio: 12 / 7;
}

.page-faq .faq-figure figcaption {
  padding: 9px 12px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--silver);
  border-top: 2px solid var(--line);
}

/* ---------- 两步指引 ---------- */
.page-faq .faq-steps {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-steps__title {
  margin: 0 0 12px;
  color: var(--orange);
}

.page-faq .faq-steps__track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: center;
}

.page-faq .faq-step {
  padding: 16px 18px 18px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--orange);
  box-shadow: 6px 6px 0 rgba(11, 14, 20, 0.85);
}

.page-faq .faq-step--alt {
  border-left-color: var(--blue);
}

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 900;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-step--alt .faq-step__no {
  color: var(--blue);
}

.page-faq .faq-step__title {
  margin: 8px 0 4px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-steps__arrow {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--lime);
  transform: rotate(90deg);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.5vw, 44px);
  padding-block: clamp(30px, 5vw, 64px) clamp(40px, 6vw, 80px);
}

.page-faq .faq-nav {
  padding: 14px 14px 10px;
  border: 2px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-nav__head {
  margin: 0 0 10px;
  color: var(--blue);
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.page-faq .faq-nav__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 6px 9px 10px;
  border-left: 3px solid transparent;
  color: var(--silver);
  text-decoration: none;
  font-size: 0.88rem;
  line-height: 1.5;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--lime);
  background: rgba(30, 144, 255, 0.12);
}

.page-faq .faq-nav__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 100px;
  margin-bottom: clamp(30px, 4.5vw, 52px);
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-group__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 900;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.12rem, 2.3vw, 1.5rem);
  font-weight: 600;
  line-height: 1.35;
}

.page-faq .faq-group__intro {
  margin: 14px 0 4px;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-group__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-happy__figure img {
  aspect-ratio: 4 / 5;
}

/* ---------- 入口对照 ---------- */
.page-faq .faq-picks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 16px 0 20px;
}

.page-faq .faq-pick {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px 18px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: 6px 6px 0 rgba(30, 144, 255, 0.38);
}

.page-faq .faq-pick--mobile {
  box-shadow: 6px 6px 0 rgba(255, 107, 44, 0.42);
}

.page-faq .faq-pick__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-faq .faq-pick--mobile .faq-pick__tag {
  color: var(--orange-soft);
}

.page-faq .faq-pick__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .faq-pick__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-pick .btn {
  margin-top: auto;
  align-self: flex-start;
  text-decoration: none;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.2;
  color: var(--blue);
}

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

.page-faq .faq-item__q:hover {
  color: var(--orange-soft);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 0 0 18px;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .hl {
  padding: 0 5px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

/* ---------- 亮色收尾块 ---------- */
.page-faq .faq-support {
  padding: clamp(18px, 3vw, 30px);
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-support .faq-group__head {
  border-bottom-color: rgba(11, 14, 20, 0.22);
}

.page-faq .faq-support .faq-group__title {
  color: var(--ink);
}

.page-faq .faq-support .faq-group__no {
  color: var(--blue-deep);
}

.page-faq .faq-support__intro {
  margin: 14px 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: #3a4453;
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .faq-contact__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  background: var(--paper);
  border: 2px solid var(--ink);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.6;
  color: #4a5566;
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-support .copy-btn {
  align-self: flex-start;
  margin-top: 2px;
  padding: 5px 10px;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.74rem;
  line-height: 1.4;
  cursor: pointer;
}

.page-faq .faq-support .copy-btn[data-copied] {
  background: var(--lime);
  color: var(--ink);
}

.page-faq .faq-support__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-support .btn {
  text-decoration: none;
  border-radius: 0;
}

.page-faq .faq-support .btn--ghost {
  border: 2px solid var(--ink);
  color: var(--ink);
  background: transparent;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .faq-picks {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-steps__track {
    grid-template-columns: 1fr auto 1fr;
    gap: 14px;
  }

  .page-faq .faq-steps__arrow {
    transform: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 880px) {
  .page-faq .faq-group__layout {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
  }

  .page-faq .faq-happy__figure {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-nav__list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-nav__link,
  .page-faq .faq-item::before {
    transition: none;
  }
}
<<<END>>>