.page-faq {
  --faq-line: rgba(244, 247, 242, 0.12);
  --faq-line-strong: rgba(244, 247, 242, 0.26);
  background: var(--ink);
  color: var(--snow);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: clip;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 6px;
}

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

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding-block: 0.75rem clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-hero__frame {
  position: relative;
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3.5vw, 3rem);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(63, 224, 208, 0.1) 0%, transparent 55%),
    linear-gradient(155deg, var(--ink-deepest) 0%, var(--ink) 58%, var(--ink-raised) 100%);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--faq-line-strong) 0 1px, transparent 1px 26px);
  opacity: 0.8;
  pointer-events: none;
}

.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -34%;
  width: 48%;
  aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(226, 102, 47, 0.22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 6.2vw, 4.75rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--snow);
  margin: 0.65rem 0 1rem;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: 0 0 1.5rem;
  font-size: clamp(1rem, 1.35vw, 1.0625rem);
  line-height: 1.85;
  color: var(--line);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--faq-line);
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-faq .faq-hero__statnum {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--neon);
}

.page-faq .faq-hero__statlabel {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--gobi);
}

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

.page-faq .faq-hero__fig .us-media,
.page-faq .faq-screen__fig .us-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--faq-line);
}

/* ---------- 区块通用标题 ---------- */
.page-faq .faq-steps h2,
.page-faq .faq-hub h2,
.page-faq .faq-screen h2,
.page-faq .faq-batch h2,
.page-faq .faq-support h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.3vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: 0.005em;
  color: var(--snow);
  margin: 0.5rem 0 0.9rem;
  text-wrap: balance;
}

.page-faq .faq-support__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gobi);
}

/* ---------- 三步路线 ---------- */
.page-faq .faq-steps {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-faq .faq-steps__head {
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-steps__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gobi);
}

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

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

.page-faq .faq-step {
  position: relative;
  padding: 1.5rem 1.25rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(31, 107, 74, 0.22), rgba(11, 36, 28, 0.92));
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  border-color: var(--sand);
  background: linear-gradient(180deg, rgba(31, 107, 74, 0.4), rgba(16, 48, 37, 0.95));
  transform: translateY(-3px);
}

.page-faq .faq-step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--sand);
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.01em;
  color: var(--snow);
  margin: 0.85rem 0 0.6rem;
}

.page-faq .faq-step__text {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--line);
}

.page-faq .faq-step__hint {
  margin: 0;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--faq-line-strong);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--dune);
}

/* ---------- 问答中心 ---------- */
.page-faq .faq-hub {
  padding-block: clamp(2.5rem, 6vw, 5rem);
  background: linear-gradient(180deg, rgba(16, 48, 37, 0.6), rgba(11, 36, 28, 0.25));
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hub__head {
  max-width: 62ch;
  margin-bottom: 1.5rem;
}

.page-faq .faq-hub__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gobi);
}

.page-faq .faq-hub .us-filter {
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq .faq-hub__layout {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-legend {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1rem;
  background: rgba(7, 19, 15, 0.72);
}

.page-faq .faq-legend__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq .faq-legend__list {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
  display: grid;
  gap: 0.2rem;
}

.page-faq .faq-legend__item a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.1rem 0.6rem;
  padding: 0.55rem 0.4rem;
  border-left: 2px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  color: var(--snow);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-legend__item a:hover,
.page-faq .faq-legend__item a:focus-visible {
  background: rgba(31, 107, 74, 0.28);
  border-left-color: var(--sand);
}

.page-faq .faq-legend__code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.page-faq .faq-legend__label {
  font-size: 0.9375rem;
}

.page-faq .faq-legend__desc {
  grid-column: 2;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--gobi);
}

.page-faq .faq-legend__note {
  margin: 0;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--faq-line-strong);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--dune);
}

.page-faq .faq-list {
  display: grid;
  gap: 0.75rem;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--pitch);
  border-radius: var(--radius-sm);
  background: rgba(7, 19, 15, 0.55);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--sand);
  background: rgba(16, 48, 37, 0.88);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--snow);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--sand);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
}

.page-faq .faq-item__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--neon);
}

.page-faq .faq-item__body {
  padding: 0 1.15rem 1.15rem;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--line);
}

/* ---------- 大屏适配 ---------- */
.page-faq .faq-screen {
  padding-block: clamp(2.5rem, 6vw, 5rem);
  background:
    radial-gradient(80% 70% at 15% 30%, rgba(63, 224, 208, 0.08), transparent 62%),
    var(--ink-deepest);
}

.page-faq .faq-screen__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

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

.page-faq .faq-screen__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-screen__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.9rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: rgba(11, 36, 28, 0.65);
}

.page-faq .faq-screen__step > .us-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  padding-top: 0.15rem;
  color: var(--dusk);
}

.page-faq .faq-screen__step h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-faq .faq-screen__step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--gobi);
}

/* ---------- 批次状态 ---------- */
.page-faq .faq-batch {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-faq .faq-batch__panel {
  border: 1px solid rgba(216, 168, 78, 0.35);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: linear-gradient(160deg, rgba(31, 107, 74, 0.32), rgba(7, 19, 15, 0.96));
}

.page-faq .faq-batch__bar {
  display: grid;
  gap: 1px;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  grid-template-columns: 1fr;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--faq-line);
}

.page-faq .faq-batch__cell {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem 1.1rem;
  background: rgba(7, 19, 15, 0.92);
}

.page-faq .faq-batch__label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dune);
}

.page-faq .faq-batch__value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--neon);
}

.page-faq .faq-batch__cols {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-batch__col h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--snow);
}

.page-faq .faq-batch__col p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--line);
}

.page-faq .faq-batch__flow {
  list-style: none;
  counter-reset: flow;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-batch__flow li {
  counter-increment: flow;
  position: relative;
  padding-left: 2.1rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--line);
}

.page-faq .faq-batch__flow li::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.05rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--sand);
}

/* ---------- 客服准备 ---------- */
.page-faq .faq-support {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-faq .faq-support__head {
  max-width: 62ch;
}

.page-faq .faq-support__check {
  list-style: none;
  margin: 1.5rem 0 clamp(1.5rem, 4vw, 2.5rem);
  padding: 0;
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--faq-line);
}

.page-faq .faq-support__check li {
  padding: 1.1rem 1.15rem;
  background: rgba(11, 36, 28, 0.92);
}

.page-faq .faq-support__check .us-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-faq .faq-support__check h3 {
  margin: 0.35rem 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--snow);
}

.page-faq .faq-support__check p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gobi);
}

.page-faq .faq-support__contact {
  display: grid;
  gap: 0.25rem;
  padding: clamp(1rem, 2.5vw, 1.75rem);
  border: 1px solid rgba(216, 168, 78, 0.3);
  border-radius: var(--radius);
  background: rgba(7, 19, 15, 0.78);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-contact__row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-contact__label {
  flex: none;
  min-width: 5.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dune);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--snow);
  word-break: break-all;
}

.page-faq .faq-contact__value--addr {
  font-family: var(--font-body);
  word-break: normal;
}

.page-faq .faq-contact__row .us-copy {
  margin-left: auto;
}

.page-faq .faq-contact__note {
  margin: 0.85rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--gobi);
}

.page-faq .faq-contact__note a {
  color: var(--sand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

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

@media (min-width: 760px) {
  .page-faq .faq-support__check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-faq .faq-steps__line {
    display: block;
    height: 40px;
    margin: 0 0 0.5rem;
  }

  .page-faq .faq-steps__line svg {
    display: block;
    width: 100%;
    height: 100%;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-faq .faq-screen__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-hub__layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-faq .faq-legend {
    position: sticky;
    top: 6.5rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item,
  .page-faq .faq-legend__item a {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-step:focus-within {
    transform: none;
  }
}
<<<END>>>