.page-faq {
  --faq-ink: var(--ice);
  --faq-soft: var(--mist);
  background: var(--sky);
  color: var(--faq-ink);
  padding-bottom: clamp(44px, 7vw, 96px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 5vw, 52px) 0 clamp(26px, 4vw, 44px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 130%;
  pointer-events: none;
  background:
    radial-gradient(62% 60% at 10% 0%, rgba(255, 107, 44, 0.17), transparent 70%),
    radial-gradient(52% 56% at 90% 8%, rgba(79, 216, 232, 0.16), transparent 72%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(115deg, rgba(244, 248, 255, 0.05) 0 1px, transparent 1px 34px);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 82%);
  mask-image: linear-gradient(180deg, #000, transparent 82%);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(20px, 3vw, 38px);
}

.page-faq .faq-hero__copy .breadcrumb {
  margin-bottom: 14px;
}

.page-faq .faq-hero__copy h1 {
  margin: 10px 0 0;
  font-size: clamp(1.85rem, 5.4vw, 3.15rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 42em;
  color: var(--faq-soft);
  font-size: clamp(0.96rem, 1.6vw, 1.05rem);
  line-height: 1.9;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-jump .chip {
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-jump .chip:hover,
.page-faq .faq-jump .chip:focus-visible {
  color: var(--sky);
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-jump .chip--lime:hover,
.page-faq .faq-jump .chip--lime:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--sky-deep);
}

.page-faq .faq-hero__art {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(79, 216, 232, 0.22), rgba(7, 20, 38, 0.92));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(22px, 3vw, 42px);
  margin-top: clamp(24px, 4vw, 46px);
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 36, 51, 0.92), rgba(14, 17, 23, 0.94));
  padding: 16px;
  box-shadow: var(--shadow-float);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid transparent;
  color: var(--faq-soft);
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--orange);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--ice);
  border-color: var(--line-strong);
  background: rgba(255, 107, 44, 0.1);
}

.page-faq .faq-index__note {
  display: none;
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 96px;
  padding-top: clamp(16px, 3vw, 24px);
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4vw, 46px);
}

.page-faq .faq-block__head {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-block__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 4px;
  height: 1.15em;
  background: var(--orange);
  opacity: 0.6;
  transition: background 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-block.is-active .faq-block__head::before {
  background: var(--lime);
  opacity: 1;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-size: clamp(1.32rem, 3vw, 1.92rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-faq .faq-block__head p {
  margin: 10px 0 0;
  max-width: 44em;
  color: var(--faq-soft);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq .faq-block__media {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
}

.page-faq .faq-block__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

/* ---------- 三步检查 ---------- */
.page-faq .check-steps {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-faq .check-step {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 36, 51, 0.9), rgba(14, 17, 23, 0.9));
  padding: 18px 18px 20px;
  overflow: hidden;
}

.page-faq .check-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), rgba(79, 216, 232, 0.65));
}

.page-faq .check-step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-faq .check-step h3 {
  margin: 10px 0 8px;
  font-size: 1.02rem;
  line-height: 1.5;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .check-step p {
  margin: 0;
  color: var(--faq-soft);
  font-size: 0.93rem;
  line-height: 1.85;
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-group {
  margin-top: clamp(16px, 2.6vw, 26px);
}

.page-faq .qa {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 36, 51, 0.72), rgba(19, 27, 40, 0.88));
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa[open] {
  border-color: rgba(184, 255, 61, 0.34);
  box-shadow: var(--shadow-float);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--ice);
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.6;
  transition: background 0.2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--orange);
  transition: color 0.2s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--lime);
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  background: rgba(79, 216, 232, 0.07);
  outline: none;
}

.page-faq .qa__q:focus-visible {
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.page-faq .qa__a {
  padding: 0 16px 18px;
  color: var(--faq-soft);
  font-size: 0.95rem;
  line-height: 1.88;
}

.page-faq .qa__a p {
  margin: 0 0 0.7em;
}

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

.page-faq .qa__a strong {
  color: var(--ice);
  font-weight: 600;
}

/* ---------- 联系卡片 ---------- */
.page-faq .contact-card {
  margin-top: clamp(18px, 3vw, 28px);
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(255, 107, 44, 0.14), rgba(7, 20, 38, 0.94) 58%),
    var(--graphite-2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .prep-list li {
  position: relative;
  padding-left: 22px;
  color: var(--faq-soft);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

.page-faq .contact-card__side {
  display: grid;
  gap: 10px;
  align-content: start;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-faq .contact-line {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: rgba(7, 20, 38, 0.62);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .contact-line:hover,
.page-faq .contact-line:focus-visible {
  border-color: var(--cyan);
  background: rgba(79, 216, 232, 0.1);
}

.page-faq .contact-line__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .contact-line__val {
  color: var(--ice);
  font-size: 0.95rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .contact-line__note {
  margin: 2px 0 4px;
  color: var(--faq-soft);
  font-size: 0.85rem;
  line-height: 1.75;
}

.page-faq .contact-card .btn {
  justify-self: start;
}

/* ---------- 继续浏览 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: 8px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-next__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  color: var(--ice);
  font-size: 0.93rem;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-next__link .btn__glyph {
  margin-left: auto;
  color: var(--orange);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-next__link:hover,
.page-faq .faq-next__link:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.1);
}

.page-faq .faq-next__link:hover .btn__glyph {
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .check-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-next__link {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .page-faq .faq-next__link .btn__glyph {
    margin-left: 0;
  }
}

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

  .page-faq .contact-card {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-faq .contact-card__side {
    padding-top: 0;
    padding-left: clamp(14px, 2vw, 22px);
    border-top: 0;
    border-left: 1px dashed var(--line);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 252px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 2px;
  }

  .page-faq .faq-index__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__list a {
    white-space: normal;
    border-left: 2px solid transparent;
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
    padding: 10px 8px;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--orange);
    background: rgba(255, 107, 44, 0.08);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }

  .page-faq .faq-index__note {
    display: block;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__note p {
    margin: 0 0 12px;
    color: var(--faq-soft);
    font-size: 0.84rem;
    line-height: 1.75;
  }

  .page-faq .qa__q {
    font-size: 1.02rem;
    padding: 16px 20px;
  }

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