.page-faq {
  --faq-paper-line: rgba(28, 21, 16, 0.16);
  --faq-glow: rgba(45, 226, 197, 0.14);
  background: var(--night);
  color: var(--ice);
  overflow-x: hidden;
}

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

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4vw, 32px) 0 clamp(44px, 8vw, 92px);
  background:
    radial-gradient(90% 70% at 88% -12%, var(--faq-glow), transparent 62%),
    linear-gradient(180deg, var(--night-2), var(--night) 72%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-frame {
  position: relative;
  margin-top: clamp(16px, 3vw, 26px);
  padding: clamp(22px, 5vw, 52px);
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(17, 26, 58, 0.92), rgba(11, 16, 38, 0.55));
}

.page-faq .faq-hero-frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 1px, transparent 1px 32px);
  opacity: 0.45;
}

.page-faq .faq-hero-frame::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 76px;
  height: 76px;
  background:
    linear-gradient(90deg, var(--orange) 0, var(--orange) 100%) right bottom / 100% 1px no-repeat,
    linear-gradient(180deg, var(--orange) 0, var(--orange) 100%) right bottom / 1px 100% no-repeat;
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 6.2vw, 3.8rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-faq .faq-hero-lede {
  margin: clamp(16px, 2.6vw, 22px) 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: rgba(232, 237, 247, 0.82);
}

.page-faq .faq-hero-facts {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--night);
}

.page-faq .fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .fact-label {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--steel);
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-sec-head {
  max-width: 60ch;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-faq .faq-sec-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4.2vw, 2.5rem);
  line-height: 1.2;
  color: var(--ice);
}

.page-faq .faq-sec-lede {
  margin: 14px 0 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: rgba(232, 237, 247, 0.76);
}

.page-faq .faq-sec-head--paper h2 {
  color: var(--ink);
}

.page-faq .faq-sec-head--paper .faq-sec-lede {
  color: rgba(28, 21, 16, 0.76);
}

.page-faq .faq-sec-head--paper .eyebrow {
  color: var(--rust);
}

/* ---------- 图片占位 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 0 0 clamp(26px, 4vw, 40px);
  border: 1px solid var(--line);
  background: var(--night-2);
}

.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.05);
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--steel);
  border-top: 1px solid var(--line);
}

/* ---------- 四步路径 ---------- */
.page-faq .faq-steps {
  padding: clamp(42px, 7vw, 84px) 0;
  background: var(--night);
  border-bottom: 1px solid var(--line);
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 3vw, 26px);
  max-width: 840px;
}

.page-faq .step-node {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
}

.page-faq .step-node::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 58px;
  bottom: -30px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), rgba(45, 226, 197, 0.28));
}

.page-faq .step-node:last-child::before {
  display: none;
}

.page-faq .step-num {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  font-family: var(--font-mono);
  font-size: 1.08rem;
  letter-spacing: 0.04em;
  color: var(--orange);
  background: var(--night-2);
  border: 1px solid var(--line-strong);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .step-node:hover .step-num {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .step-body h3 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.04rem, 2.6vw, 1.28rem);
  color: var(--ice);
}

.page-faq .step-body p {
  margin: 8px 0 0;
  font-size: 0.94rem;
  line-height: 1.76;
  color: rgba(232, 237, 247, 0.74);
}

/* ---------- 会员中心（奶油纸面） ---------- */
.page-faq .faq-center {
  padding: clamp(46px, 8vw, 94px) 0;
  background:
    repeating-linear-gradient(0deg, rgba(28, 21, 16, 0.028) 0 1px, transparent 1px 5px),
    radial-gradient(100% 60% at 0% 0%, rgba(178, 58, 30, 0.08), transparent 62%),
    var(--paper);
  color: var(--ink);
}

.page-faq .center-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--faq-paper-line);
  border: 1px solid var(--faq-paper-line);
}

.page-faq .center-cell {
  padding: clamp(20px, 3vw, 28px);
  background: var(--paper);
}

.page-faq .center-cell h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  color: var(--ink);
}

.page-faq .center-cell h3::before {
  content: "";
  flex: none;
  width: 18px;
  height: 3px;
  background: var(--rust);
}

.page-faq .center-cell p {
  margin: 10px 0 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: rgba(28, 21, 16, 0.78);
}

.page-faq .center-cell .center-meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--rust);
}

/* ---------- 问答组 ---------- */
.page-faq .qa-group {
  max-width: 860px;
  border-top: 1px solid var(--line-strong);
}

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

.page-faq .qa-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 16px 4px;
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  color: var(--ice);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa-item summary:hover,
.page-faq .qa-item summary:focus-visible {
  color: var(--cyan);
}

.page-faq .qa-item summary::after {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .qa-item[open] summary::after {
  content: "−";
  color: var(--night);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .qa-body {
  padding: 0 4px 20px;
  max-width: 68ch;
}

.page-faq .qa-body p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(232, 237, 247, 0.76);
}

/* ---------- 切换疑问 ---------- */
.page-faq .faq-switch {
  padding: clamp(42px, 7vw, 86px) 0;
  background: var(--night-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- 导出格式 ---------- */
.page-faq .faq-export {
  padding: clamp(46px, 8vw, 94px) 0;
  background: linear-gradient(180deg, var(--night), var(--night-2));
  border-bottom: 1px solid var(--line);
}

.page-faq .export-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .export-cell {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 26px);
  background: var(--night);
}

.page-faq .export-cell h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .export-cell .export-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.16rem;
  color: var(--ice);
}

.page-faq .export-cell p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(232, 237, 247, 0.74);
}

.page-faq .export-cell .export-step {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--amber);
}

.page-faq .export-note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: rgba(232, 237, 247, 0.72);
}

.page-faq .export-note a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 账号 ---------- */
.page-faq .faq-account {
  padding: clamp(44px, 7vw, 88px) 0;
  background: var(--paper);
  color: var(--ink);
  border-top: 3px solid var(--rust);
}

.page-faq .account-list {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-faq .account-item {
  border-left: 2px solid var(--rust);
  padding-left: clamp(14px, 2vw, 20px);
}

.page-faq .account-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--ink);
}

.page-faq .account-item p {
  margin: 8px 0 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: rgba(28, 21, 16, 0.78);
}

.page-faq .account-item a {
  color: var(--rust);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-questions {
  padding: clamp(46px, 8vw, 94px) 0;
  background: var(--night);
}

/* ---------- 结束带 ---------- */
.page-faq .faq-cta {
  padding: 0 0 clamp(46px, 8vw, 92px);
  background: var(--night);
}

.page-faq .cta-band {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(120deg, rgba(255, 122, 61, 0.18), rgba(45, 226, 197, 0.1) 72%),
    var(--night-2);
}

.page-faq .cta-band::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--orange), var(--amber));
}

.page-faq .cta-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .cta-band h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1.22;
  color: var(--ice);
}

.page-faq .cta-band p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: rgba(232, 237, 247, 0.78);
}

.page-faq .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-faq .account-item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .center-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-faq .account-item:last-child {
    grid-column: auto;
  }

  .page-faq .qa-group--split {
    max-width: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 52px);
    align-content: start;
  }

  .page-faq .step-list {
    gap: 30px;
  }

  .page-faq .step-node {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
  }

  .page-faq .step-num {
    width: 64px;
    height: 64px;
    font-size: 1.15rem;
  }

  .page-faq .step-node::before {
    left: 31px;
    top: 66px;
    bottom: -34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-num,
  .page-faq .qa-item summary,
  .page-faq .qa-item summary::after {
    transition: none;
  }
}
<<<END>>>