.page-faq {
  --faq-line: rgba(28, 42, 68, 0.9);
  --faq-line-soft: rgba(28, 42, 68, 0.6);
  --faq-gap: clamp(20px, 4vw, 40px);
  --faq-ink-soft: rgba(244, 246, 251, 0.76);
  --faq-ink-faint: rgba(244, 246, 251, 0.58);
  --faq-paper-text: rgba(26, 26, 34, 0.74);
}

.page-faq .faq-crumb-wrap {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 86px) 0 clamp(34px, 5vw, 64px);
  background:
    radial-gradient(120% 100% at 92% -10%, rgba(123, 47, 247, 0.42) 0%, rgba(123, 47, 247, 0) 62%),
    radial-gradient(90% 80% at 0% 110%, rgba(47, 128, 255, 0.3) 0%, rgba(47, 128, 255, 0) 64%),
    linear-gradient(180deg, #121826 0%, #0E0E12 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: 62%;
  height: 150%;
  background:
    repeating-linear-gradient(115deg, rgba(47, 128, 255, 0.14) 0 1px, transparent 1px 26px);
  transform: skewX(-14deg);
  pointer-events: none;
  opacity: 0.55;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(123, 47, 247, 0) 0%, rgba(123, 47, 247, 0.9) 42%, rgba(47, 128, 255, 0.9) 72%, rgba(47, 128, 255, 0) 100%);
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yellow);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 7vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--fog);
  margin: 0 0 20px;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 2.1vw, 17.5px);
  line-height: 1.82;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-faq .faq-hero__v {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--fog);
}

/* ---------- 筛选索引 ---------- */
.page-faq .faq-index {
  padding: 24px 0 22px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
  margin: 0 0 14px;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-faq .filter-btn {
  appearance: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  line-height: 1;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: rgba(28, 42, 68, 0.32);
  color: var(--faq-ink-soft);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.page-faq .filter-btn:hover {
  border-color: rgba(47, 128, 255, 0.7);
  color: var(--fog);
  transform: translateY(-1px);
}

.page-faq .filter-btn[aria-pressed="true"] {
  border-color: rgba(47, 128, 255, 0.95);
  background: linear-gradient(135deg, rgba(123, 47, 247, 0.42), rgba(47, 128, 255, 0.38));
  color: var(--fog);
}

.page-faq .faq-index__status {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding: clamp(42px, 7vw, 82px) 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-section:first-of-type {
  border-top: 0;
}

.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px 18px;
  align-items: start;
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 7vw, 56px);
  line-height: 0.82;
  color: rgba(123, 47, 247, 0.92);
  letter-spacing: -0.04em;
}

.page-faq .faq-section h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.2vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--fog);
  margin: 0 0 12px;
}

.page-faq .faq-section__lead {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(14.5px, 2vw, 16.5px);
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid rgba(123, 47, 247, 0.85);
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, rgba(18, 24, 38, 0.94), rgba(14, 14, 18, 0.72));
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--yellow);
  padding-top: 2px;
  border-right: 1px solid var(--faq-line);
  align-self: stretch;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-step strong {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--fog);
}

/* ---------- 图示 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: linear-gradient(150deg, rgba(42, 17, 80, 0.8), rgba(18, 24, 38, 0.95));
  box-shadow: var(--glow);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--grey);
}

.page-faq .faq-figure--wide {
  margin-bottom: var(--faq-gap);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-accordion {
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 1fr 24px;
  gap: 14px;
  align-items: start;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(14.5px, 2.1vw, 17px);
  line-height: 1.55;
  color: var(--fog);
  transition: color 0.16s ease;
}

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

.page-faq .faq-item > summary:hover {
  color: #ffffff;
}

.page-faq .faq-item > summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.4;
  text-align: center;
  color: var(--blue);
}

.page-faq .faq-item[open] > summary::after {
  content: "－";
  color: var(--purple);
}

.page-faq .faq-item__body {
  padding: 0 26px 20px 2px;
  max-width: 72ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--faq-ink-soft);
  border-top: 1px dashed var(--faq-line-soft);
  padding-top: 14px;
  margin-top: -2px;
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__body a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 128, 255, 0.45);
}

.page-faq .faq-item__body a:hover {
  border-bottom-color: var(--blue);
}

/* ---------- 暖纸费用区 ---------- */
.page-faq .faq-paper {
  background: var(--paper);
  color: var(--paper-ink);
  border-top: 1px solid rgba(26, 26, 34, 0.14);
  border-bottom: 1px solid rgba(26, 26, 34, 0.14);
}

.page-faq .faq-paper .faq-section__num {
  color: rgba(123, 47, 247, 0.8);
}

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

.page-faq .faq-paper .faq-section__lead {
  color: var(--faq-paper-text);
}

.page-faq .fee-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(20px, 3.5vw, 30px);
}

.page-faq .fee-card {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 18px 18px 20px;
  border: 1px solid rgba(26, 26, 34, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.52);
}

.page-faq .fee-card__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(123, 47, 247, 0.92);
}

.page-faq .fee-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17.5px;
  line-height: 1.3;
  color: var(--paper-ink);
}

.page-faq .fee-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--faq-paper-text);
}

.page-faq .fee-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-faq .fee-actions .btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  padding: 12px 20px;
  border-radius: 999px;
  text-decoration: none;
  display: inline-block;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-faq .fee-actions .btn--primary {
  border: 1px solid rgba(26, 26, 34, 0.85);
  background: var(--ink);
  color: var(--paper);
}

.page-faq .fee-actions .btn--ghost {
  border: 1px solid rgba(26, 26, 34, 0.35);
  background: transparent;
  color: var(--paper-ink);
}

.page-faq .fee-actions .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px -16px rgba(26, 26, 34, 0.9);
}

.page-faq .faq-paper .faq-accordion {
  border-top-color: rgba(26, 26, 34, 0.18);
}

.page-faq .faq-paper .faq-item {
  border-bottom-color: rgba(26, 26, 34, 0.18);
}

.page-faq .faq-paper .faq-item > summary {
  color: var(--paper-ink);
}

.page-faq .faq-paper .faq-item > summary:hover {
  color: #000000;
}

.page-faq .faq-paper .faq-item > summary::after {
  color: rgba(123, 47, 247, 0.9);
}

.page-faq .faq-paper .faq-item__body {
  color: var(--faq-paper-text);
  border-top-color: rgba(26, 26, 34, 0.16);
}

.page-faq .faq-paper .faq-item__body a {
  color: #4B1BC4;
  border-bottom-color: rgba(75, 27, 196, 0.4);
}

/* ---------- 联系区 ---------- */
.page-faq .contact-panel {
  display: grid;
  gap: 6px 40px;
  padding: clamp(18px, 3.6vw, 32px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background:
    radial-gradient(90% 130% at 100% 0%, rgba(123, 47, 247, 0.3), rgba(123, 47, 247, 0) 62%),
    linear-gradient(160deg, rgba(18, 24, 38, 0.96), rgba(10, 10, 15, 0.98));
  box-shadow: var(--glow);
}

.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .contact-panel > div:last-child .contact-row:last-child {
  border-bottom: 0;
}

.page-faq .contact-row__k {
  flex: 0 0 auto;
  min-width: 74px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-faq .contact-row__v {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--fog);
  word-break: break-word;
}

.page-faq .contact-row__v a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 128, 255, 0.45);
}

.page-faq .contact-row__v a:hover {
  border-bottom-color: var(--blue);
}

.page-faq .copy-btn {
  appearance: none;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(47, 128, 255, 0.55);
  background: rgba(47, 128, 255, 0.12);
  color: var(--fog);
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}

.page-faq .copy-btn:hover {
  border-color: var(--blue);
  background: rgba(47, 128, 255, 0.22);
}

.page-faq .copy-btn[data-copied] {
  border-color: var(--green);
  color: var(--green);
  background: rgba(46, 230, 168, 0.12);
}

.page-faq .contact-footnote {
  margin: 16px 0 clamp(22px, 4vw, 34px);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--faq-ink-faint);
  max-width: 70ch;
}

.page-faq .contact-footnote a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 128, 255, 0.45);
}

.page-faq .faq-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--faq-line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--grey);
}

.page-faq .faq-legal a {
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-legal a:hover {
  color: var(--fog);
  border-bottom-color: rgba(244, 246, 251, 0.4);
}

.page-faq .faq-top {
  display: flex;
  justify-content: flex-end;
  margin-top: 22px;
}

.page-faq .top-btn {
  appearance: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: rgba(28, 42, 68, 0.35);
  color: var(--faq-ink-soft);
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease;
}

.page-faq .top-btn:hover {
  border-color: rgba(123, 47, 247, 0.85);
  color: var(--fog);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .fee-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-crumb-wrap {
    padding-top: 26px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

  .page-faq .faq-section__head {
    grid-template-columns: auto 1fr;
    gap: 12px 28px;
    align-items: baseline;
  }

  .page-faq .contact-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 4px 46px;
  }

  .page-faq .contact-panel > div .contact-row:last-child {
    border-bottom: 0;
  }
}

@media (min-width: 1080px) {
  .page-faq .fee-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__meta {
    gap: 10px 44px;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-step {
    grid-template-columns: 34px 1fr;
    gap: 10px;
    padding: 14px 14px;
  }

  .page-faq .contact-row__k {
    min-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn,
  .page-faq .fee-actions .btn,
  .page-faq .copy-btn,
  .page-faq .top-btn {
    transition: none;
  }

  .page-faq .filter-btn:hover,
  .page-faq .fee-actions .btn:hover {
    transform: none;
  }
}
<<<END>>>