.page-faq {
  --faq-gold-ink: #8A6420;
  --faq-line: rgba(201, 162, 74, 0.36);
  --faq-step-size: clamp(40px, 7.6vw, 66px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 4px;
  padding-bottom: 12px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero-main h1 {
  margin: 12px 0 0;
  max-width: 24ch;
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-hero-main .lede {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

@media (min-width: 1000px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

.page-faq .faq-hero-side {
  display: grid;
  gap: 22px;
}

.page-faq .faq-flow-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--harbor);
}

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

.page-faq .prep-card {
  padding: 20px 22px 22px;
}

.page-faq .prep-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold-deep);
}

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

.page-faq .prep-list li {
  display: grid;
  gap: 3px;
  padding-left: 12px;
  border-left: 2px solid var(--faq-line);
}

.page-faq .prep-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--pearl);
}

.page-faq .prep-val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 步骤手风琴 ---------- */
.page-faq .guide-steps {
  margin-top: 30px;
  display: grid;
  gap: 12px;
}

.page-faq .guide-step {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: rgba(20, 48, 74, 0.4);
  transition: border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .guide-step[open] {
  border-color: var(--faq-line);
  background: rgba(20, 48, 74, 0.66);
}

.page-faq .guide-step > summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .guide-step > summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: 4px;
  border-right: 2px solid var(--pearl);
  border-bottom: 2px solid var(--pearl);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) ease;
}

.page-faq .guide-step[open] > summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .step-num {
  flex: 0 0 auto;
  min-width: 1.3em;
  text-align: center;
  font-family: var(--font-num);
  font-size: var(--faq-step-size);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-faq .step-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-faq .step-title small {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .guide-step-body {
  padding: 18px 18px 20px;
  border-top: 1px dashed var(--faq-line);
  display: grid;
  gap: 18px;
}

.page-faq .step-col-title {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-faq .step-col ul {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 7px;
}

.page-faq .step-col li {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .step-col li::marker {
  color: var(--pearl);
}

@media (min-width: 700px) {
  .page-faq .guide-step-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
  }

  .page-faq .step-col:first-child {
    padding-right: 24px;
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .step-col:last-child {
    padding-left: 24px;
  }
}

/* ---------- 费用对照 ---------- */
.page-faq .faq-number-figure {
  margin: 26px 0 26px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

.page-faq .faq-tier-paper {
  padding: 10px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-faq .tier-scroll {
  overflow-x: auto;
  border-radius: 4px;
}

.page-faq .tier-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 15px;
  color: var(--paper-ink);
}

.page-faq .tier-table thead th {
  background: var(--indigo);
  color: var(--text);
  text-align: left;
  padding: 14px 16px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.page-faq .tier-table tbody th,
.page-faq .tier-table tbody td {
  text-align: left;
  padding: 15px 16px;
  border-bottom: 1px solid rgba(27, 37, 48, 0.13);
  vertical-align: top;
  line-height: 1.66;
  font-weight: 400;
}

.page-faq .tier-table tbody th {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
}

.page-faq .tier-table tbody tr:last-child th,
.page-faq .tier-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .tier-table tbody tr:hover {
  background: rgba(42, 30, 74, 0.08);
}

.page-faq .tier-table tbody tr:hover th {
  color: var(--indigo);
}

.page-faq .tier-price {
  font-family: var(--font-num);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--faq-gold-ink);
  white-space: nowrap;
}

.page-faq .tier-price small {
  display: block;
  margin-top: 3px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0;
  color: rgba(27, 37, 48, 0.68);
}

/* ---------- 下载与校验 ---------- */
.page-faq .faq-dl-grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-faq .faq-dl-grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

.page-faq .faq-dl-copy .block-head {
  margin-bottom: 22px;
}

.page-faq .check-list {
  counter-reset: chk;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .check-list li {
  position: relative;
  padding-left: 42px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-faq .check-list li::before {
  counter-increment: chk;
  content: "0" counter(chk);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-num);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--gold-deep);
}

.page-faq .faq-dl-cta {
  margin: 26px 0 0;
}

.page-faq .faq-batch-card {
  padding: 22px;
  display: grid;
  gap: 12px;
}

.page-faq .batch-label {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-faq .faq-batch-card .copy-value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px dashed var(--faq-line);
  border-radius: var(--radius);
  background: rgba(11, 27, 43, 0.5);
}

.page-faq .faq-batch-card .copy-value code {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .batch-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-batch-card .divider-rule {
  margin: 6px 0;
}

/* ---------- 联系前准备 ---------- */
.page-faq .prep-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

@media (min-width: 780px) {
  .page-faq .prep-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .prep-item {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: rgba(14, 58, 58, 0.38);
  transition: border-color var(--dur) ease, transform var(--dur) ease;
}

.page-faq .prep-item:hover {
  border-color: var(--faq-line);
  transform: translateY(-3px);
}

.page-faq .prep-item-code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--pearl);
}

.page-faq .prep-item h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .prep-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-bc-cta {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-bc-cta a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-bc-cta a:hover {
  color: var(--pearl);
}

/* ---------- 常见疑问 ---------- */
.page-faq .qa-groups {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

@media (min-width: 880px) {
  .page-faq .qa-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 36px;
  }
}

.page-faq .qa-group-title {
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--gold-deep);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  color: var(--pearl);
}

.page-faq .qa-list {
  display: grid;
  gap: 9px;
}

.page-faq .qa-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(11, 27, 43, 0.44);
  transition: border-color var(--dur) ease;
}

.page-faq .qa-item[open] {
  border-color: var(--faq-line);
}

.page-faq .qa-item > summary {
  position: relative;
  padding: 14px 42px 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
}

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

.page-faq .qa-item > summary::after {
  content: "+";
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  color: var(--pearl);
  transition: transform var(--dur) ease;
}

.page-faq .qa-item[open] > summary::after {
  content: "\2212";
}

.page-faq .qa-answer {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .qa-answer p + p {
  margin-top: 8px;
}

.page-faq .qa-answer a {
  color: var(--sky);
}

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

  .page-faq .prep-item:hover {
    transform: none;
  }
}