.page-faq {
  --faq-rail: 268px;
  --faq-line: rgba(11, 42, 69, .14);
  --faq-line-soft: rgba(11, 42, 69, .08);
  --faq-card: #FFFDF8;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2rem) 0 clamp(2.5rem, 6.5vw, 4.25rem);
  color: var(--white);
  background:
    radial-gradient(62% 82% at 90% 6%, rgba(23, 224, 214, .20), transparent 62%),
    radial-gradient(48% 62% at 4% 98%, rgba(242, 184, 75, .13), transparent 64%),
    linear-gradient(158deg, var(--deep) 0%, var(--deep-deep) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .55;
  pointer-events: none;
}

.page-faq .faq-crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  font-size: .82rem;
}

.page-faq .faq-crumbs ol {
  color: rgba(255, 255, 255, .58);
}

.page-faq .faq-crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--cyan);
  text-decoration: underline;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  color: var(--cyan);
  letter-spacing: .16em;
}

.page-faq .faq-hero__title {
  margin: .55rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.4vw, 4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--white);
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lede {
  max-width: 48ch;
  margin: 1.1rem 0 0;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.8;
  color: rgba(255, 255, 255, .82);
}

.page-faq .faq-hero__meta {
  margin: 1.15rem 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-faq .faq-hero__quick {
  border: 1px solid rgba(191, 233, 230, .26);
  border-radius: var(--r-lg);
  padding: clamp(1rem, 2.6vw, 1.5rem);
  background: linear-gradient(180deg, rgba(18, 58, 92, .78), rgba(7, 27, 44, .66));
  box-shadow: 0 22px 52px -30px rgba(0, 0, 0, .8);
}

.page-faq .faq-hero__quick-label {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .faq-quicklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .faq-quicklist a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  align-items: center;
  padding: .8rem .9rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .05);
  color: var(--white);
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-quicklist a:hover {
  background: rgba(23, 224, 214, .13);
  border-color: rgba(23, 224, 214, .5);
  transform: translateY(-2px);
}

.page-faq .faq-quicklist a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-quicklist__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-quicklist__text {
  font-size: .95rem;
  line-height: 1.55;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2.25rem, 6vw, 4rem);
  background: var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-faq .faq-rail__label {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--slate);
}

.page-faq .faq-filters {
  list-style: none;
  margin: 0;
  padding: 0 0 .35rem;
  display: flex;
  gap: .4rem;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .85rem;
  padding: .55rem .85rem;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-pill);
  background: var(--faq-card);
  color: var(--ink-soft);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-filter:hover {
  border-color: var(--cyan);
  color: var(--deep);
}

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

.page-faq .faq-filter__count {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--slate);
}

.page-faq .faq-filter.is-current {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--white);
}

.page-faq .faq-filter.is-current .faq-filter__count {
  color: var(--cyan);
}

.page-faq .faq-rail__note {
  margin-top: 1.1rem;
  padding: .9rem 1rem;
  border-left: 3px solid var(--amber);
  border-radius: var(--r-sm);
  background: var(--paper-2);
}

.page-faq .faq-rail__note-title {
  margin: 0 0 .35rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--ink);
}

.page-faq .faq-rail__note p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 1.5rem;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .3rem .9rem;
  align-items: baseline;
  padding-bottom: .9rem;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__num {
  font-size: 1.35rem;
  line-height: 1;
  color: var(--deep-soft);
}

.page-faq .faq-group__head h2 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__head p {
  grid-column: 2;
  margin: .1rem 0 0;
  max-width: 56ch;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-figure {
  margin: 0 0 1.25rem;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--deep);
  box-shadow: var(--shadow-1);
}

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

.page-faq .faq-figure--tall img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-figure figcaption {
  padding: .65rem .95rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .03em;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-list {
  display: grid;
  gap: .55rem;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  background: var(--faq-card);
  box-shadow: 0 1px 0 rgba(11, 42, 69, .03);
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(23, 224, 214, .55);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:hover {
  color: var(--deep-soft);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 50%;
  background: var(--paper-2);
  color: var(--deep);
  font-family: var(--font-mono);
  font-size: .95rem;
  line-height: 1;
  transition: background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  background: var(--deep);
  color: var(--cyan);
}

.page-faq .faq-answer {
  padding: 0 1.1rem 1.1rem;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-answer p {
  margin: 0 0 .65rem;
}

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

.page-faq .faq-answer a {
  color: var(--deep-soft);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--cyan-deep);
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--deep);
  text-decoration-color: var(--cyan);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: .2rem 0 .8rem;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 2.3rem;
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .12rem;
  padding: .08rem .32rem;
  border-radius: var(--r-sm);
  background: var(--mist);
  color: var(--deep);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .04em;
}

/* ---------- 雾青分组 ---------- */
.page-faq .faq-group--mist {
  padding: clamp(1rem, 3vw, 1.6rem);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(191, 233, 230, .38), rgba(191, 233, 230, .16));
}

.page-faq .faq-group--mist .faq-item {
  background: rgba(255, 253, 248, .92);
}

/* ---------- 深海蓝分组 ---------- */
.page-faq .faq-group--deep {
  padding: clamp(1.15rem, 3.2vw, 1.9rem);
  border-radius: var(--r-lg);
  background:
    radial-gradient(58% 76% at 96% 4%, rgba(23, 224, 214, .18), transparent 62%),
    linear-gradient(152deg, var(--deep) 0%, var(--deep-deep) 100%);
  color: var(--white);
}

.page-faq .faq-group--deep .faq-group__head {
  border-bottom-color: rgba(191, 233, 230, .28);
}

.page-faq .faq-group--deep .faq-group__num {
  color: var(--cyan);
}

.page-faq .faq-group--deep .faq-group__head h2 {
  color: var(--white);
}

.page-faq .faq-group--deep .faq-group__head p {
  color: rgba(255, 255, 255, .72);
}

.page-faq .faq-group--deep .faq-item {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  box-shadow: none;
}

.page-faq .faq-group--deep .faq-item[open] {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(23, 224, 214, .5);
}

.page-faq .faq-group--deep .faq-item summary {
  color: var(--white);
}

.page-faq .faq-group--deep .faq-item summary:hover {
  color: var(--cyan);
}

.page-faq .faq-group--deep .faq-item summary::after {
  background: rgba(255, 255, 255, .14);
  color: var(--mist);
}

.page-faq .faq-group--deep .faq-item[open] summary::after {
  background: var(--cyan);
  color: var(--deep-deep);
}

.page-faq .faq-group--deep .faq-answer {
  color: rgba(255, 255, 255, .78);
}

.page-faq .faq-group--deep .faq-answer a {
  color: var(--cyan);
  text-decoration-color: rgba(23, 224, 214, .55);
}

.page-faq .faq-contact {
  margin-top: 1.15rem;
  padding-top: 1rem;
  display: grid;
  gap: .55rem;
  border-top: 1px dashed rgba(191, 233, 230, .34);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .85rem;
  align-items: baseline;
  font-size: .9rem;
  line-height: 1.65;
}

.page-faq .faq-contact__key {
  flex: 0 0 auto;
  min-width: 5.2rem;
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  flex: 1 1 12rem;
  min-width: 0;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---------- 数字带 ---------- */
.page-faq .faq-numbers {
  padding: clamp(1.75rem, 4.5vw, 2.75rem) 0;
  background: var(--paper-2);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-numbers__label {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-faq .faq-numbers__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .faq-numbers__num {
  display: block;
  font-size: clamp(1.6rem, 4.4vw, 2.3rem);
  line-height: 1.1;
  color: var(--deep);
}

.page-faq .faq-numbers__text {
  display: block;
  margin-top: .25rem;
  font-size: .86rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- 后续入口 ---------- */
.page-faq .faq-next {
  padding: clamp(2.25rem, 6vw, 3.75rem) 0 clamp(2.5rem, 6vw, 4rem);
  background: var(--paper);
}

.page-faq .faq-next__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.45rem, 3.6vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-next__head p {
  margin: .6rem 0 0;
  max-width: 50ch;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-next__cards {
  margin-top: 1.5rem;
  display: grid;
  gap: .75rem;
}

.page-faq .faq-next__card {
  display: grid;
  gap: .3rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--faq-card);
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-next__card:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-next__card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-next__card-num {
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--deep-soft);
}

.page-faq .faq-next__card strong {
  font-family: var(--font-head);
  font-size: 1.08rem;
  line-height: 1.35;
}

.page-faq .faq-next__card span:last-child {
  font-size: .88rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-numbers__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.35rem 2rem;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(290px, .85fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.75rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 1.25rem;
  }

  .page-faq .faq-filters {
    flex-direction: column;
    gap: .3rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-filter {
    border-radius: var(--r-md);
    padding: .62rem .8rem;
    border-color: transparent;
    border-bottom: 1px solid var(--faq-line-soft);
    background: transparent;
  }

  .page-faq .faq-filter.is-current {
    background: var(--deep);
    border-color: var(--deep);
  }

  .page-faq .faq-item summary {
    padding: 1.1rem 1.25rem;
  }

  .page-faq .faq-answer {
    padding: 0 1.25rem 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quicklist a,
  .page-faq .faq-next__card,
  .page-faq .faq-filter,
  .page-faq .faq-item,
  .page-faq .faq-item summary::after {
    transition: none;
  }

  .page-faq .faq-quicklist a:hover,
  .page-faq .faq-next__card:hover {
    transform: none;
  }
}
<<<END>>>