.page-faq {
  --faq-paper: #FFFDF7;
  --faq-sand: #EDE6D6;
  --faq-deep-soft: rgba(11, 29, 51, 0.6);
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.7;
}

/* ===== Hero 区域 ===== */
.page-faq .faq-hero {
  padding: 40px var(--site-pad) 56px;
  background: linear-gradient(180deg, var(--color-cream) 0%, var(--faq-sand) 100%);
  border-bottom: 3px solid var(--color-deep);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "?";
  position: absolute;
  right: -30px;
  top: -60px;
  font-family: var(--font-head);
  font-size: 280px;
  font-weight: 900;
  line-height: 1;
  color: rgba(11, 29, 51, 0.05);
  pointer-events: none;
}

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

.page-faq .faq-hero .crumb {
  margin-bottom: 28px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-hero-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-faq .faq-hero-copy .section-index {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-steel);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--color-line);
  display: inline-block;
  width: fit-content;
}

.page-faq .faq-hero-copy .page-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4.5vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--color-deep);
}

.page-faq .faq-hero-copy .lead {
  margin: 0;
  color: var(--color-steel);
  font-size: 0.98rem;
  max-width: 56ch;
}

.page-faq .faq-hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.page-faq .faq-hero-index .k-tag {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 14px;
  background: var(--faq-paper);
  border: 2px solid var(--color-deep);
  color: var(--color-deep);
  text-decoration: none;
  box-shadow: 4px 4px 0 var(--color-deep);
  transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.page-faq .faq-hero-index .k-tag:hover {
  background: var(--color-deep);
  color: var(--color-neon);
  box-shadow: 2px 2px 0 var(--color-deep);
}

.page-faq .faq-hero-figure {
  margin: 0;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 420px;
  margin: 0 auto;
  border: 3px solid var(--color-deep);
  box-shadow: 10px 10px 0 var(--color-deep);
  object-fit: cover;
  background: var(--faq-paper);
}

.page-faq .faq-hero-figure figcaption {
  margin-top: 14px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-steel);
  text-align: right;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 6px;
}

/* ===== 常见说明与变更说明对照 ===== */
.page-faq .faq-compare {
  padding: 64px 0 72px;
  background: var(--color-cream);
}

.page-faq .faq-compare .section-head {
  margin-bottom: 36px;
}

.page-faq .faq-compare-grid {
  display: grid;
  gap: 36px;
}

.page-faq .faq-compare-col {
  border: 3px solid var(--color-deep);
  box-shadow: 10px 10px 0 var(--color-deep);
  overflow: hidden;
}

.page-faq .faq-compare-col--faq {
  background: var(--faq-paper);
}

.page-faq .faq-compare-col--log {
  background: var(--color-deep);
  border-color: var(--color-deep);
  box-shadow: 10px 10px 0 rgba(11, 29, 51, 0.3);
  color: var(--color-cream);
}

.page-faq .faq-compare-col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 3px solid var(--color-deep);
  background: var(--faq-sand);
}

.page-faq .faq-compare-col--log .faq-compare-col-head {
  background: var(--color-deep-l);
  border-bottom: 2px solid var(--color-neon);
}

.page-faq .faq-compare-col-label {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-deep);
}

.page-faq .faq-compare-col--log .faq-compare-col-label {
  color: var(--color-neon);
}

.page-faq .faq-compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-compare-item {
  display: flex;
  gap: 16px;
  padding: 20px 18px;
  border-bottom: 2px solid var(--color-line);
}

.page-faq .faq-compare-item:last-child {
  border-bottom: none;
}

.page-faq .faq-compare-no {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-alert);
  flex-shrink: 0;
  min-width: 30px;
  line-height: 1.4;
}

.page-faq .faq-compare-content {
  min-width: 0;
}

.page-faq .faq-compare-q {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--color-deep);
}

.page-faq .faq-compare-content p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-steel);
}

.page-faq .faq-change-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-change-item {
  display: flex;
  gap: 14px;
  padding: 18px;
  border-bottom: 2px solid rgba(245, 240, 228, 0.12);
}

.page-faq .faq-change-item:last-child {
  border-bottom: none;
}

.page-faq .faq-change-ver {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-neon);
  background: rgba(180, 243, 66, 0.12);
  padding: 4px 8px;
  border: 1px solid rgba(180, 243, 66, 0.35);
  height: fit-content;
  flex-shrink: 0;
  white-space: nowrap;
}

.page-faq .faq-change-content {
  min-width: 0;
}

.page-faq .faq-change-title {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--color-cream);
}

.page-faq .faq-change-content p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(245, 240, 228, 0.72);
}

.page-faq .faq-compare-texture {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin-top: 48px;
  border: 2px solid var(--color-deep);
  background: var(--faq-paper);
}

/* ===== 使用帮助列表 ===== */
.page-faq .faq-help {
  padding: 64px 0;
  background: var(--color-deep);
  border-top: 3px solid var(--color-deep);
  border-bottom: 3px solid var(--color-deep);
  position: relative;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--color-neon) 0 20px, transparent 20px 40px, var(--color-alert) 40px 56px, transparent 56px 76px);
}

.page-faq .faq-help .section-index {
  color: var(--color-neon);
}

.page-faq .faq-help .section-title {
  color: var(--color-cream);
}

.page-faq .faq-help .section-desc {
  color: rgba(245, 240, 228, 0.65);
}

.page-faq .faq-help-grid {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.page-faq .faq-help-card {
  background: var(--faq-paper);
  border: 3px solid var(--color-deep);
  box-shadow: 10px 10px 0 rgba(180, 243, 66, 0.35);
  transition: box-shadow 0.2s ease;
}

.page-faq .faq-help-card[open] {
  box-shadow: 10px 10px 0 var(--color-neon);
}

.page-faq .faq-help-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-deep);
}

.page-faq .faq-help-card-head::-webkit-details-marker {
  display: none;
}

.page-faq .faq-help-card[open] .faq-help-card-head {
  background: var(--faq-sand);
  border-bottom: 2px solid var(--color-deep);
}

.page-faq .faq-help-card-num {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-neon);
  background: var(--color-deep);
  padding: 4px 8px;
  line-height: 1;
  border-radius: 2px;
}

.page-faq .faq-help-card-toggle {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 22px;
  color: var(--color-steel);
  line-height: 1;
  transition: transform 0.2s;
}

.page-faq .faq-help-card[open] .faq-help-card-toggle {
  transform: rotate(45deg);
  color: var(--color-alert);
}

.page-faq .faq-help-card-body {
  padding: 0 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-help-card-body .data-list {
  margin: 12px 0 0;
}

.page-faq .data-list-row {
  padding: 10px 0;
  border-bottom: 2px solid var(--color-line);
}

.page-faq .data-list-row:last-child {
  border-bottom: none;
}

.page-faq .data-list-k {
  font-family: var(--font-data);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-deep);
  margin-bottom: 4px;
}

.page-faq .data-list-v {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-steel);
  margin: 0;
}

.page-faq .faq-help-card-body .btn {
  align-self: flex-start;
  text-decoration: none;
}

/* ===== 联系支持 ===== */
.page-faq .faq-support {
  padding: 72px 0 88px;
  background: var(--color-cream);
}

.page-faq .faq-support-inner {
  display: grid;
  gap: 32px;
  padding: 28px;
  background: var(--color-deep);
  border: 3px solid var(--color-deep);
  box-shadow: 10px 10px 0 rgba(11, 29, 51, 0.25);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-support-inner::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  border-style: solid;
  border-width: 0 0 48px 48px;
  border-color: transparent transparent var(--color-alert) transparent;
}

.page-faq .faq-support-copy {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.page-faq .faq-support-copy .section-index {
  color: var(--color-neon);
}

.page-faq .faq-support-copy .section-title {
  color: var(--color-cream);
  margin: 0;
}

.page-faq .faq-support-copy .lead {
  color: rgba(245, 240, 228, 0.7);
  margin: 0;
  max-width: 46ch;
}

.page-faq .faq-support-copy .btn {
  margin-top: 8px;
  text-decoration: none;
}

.page-faq .faq-support-grid {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-support-block {
  background: var(--color-deep-l);
  border: 2px solid rgba(245, 240, 228, 0.2);
  padding: 14px 16px;
}

.page-faq .faq-support-label {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-neon);
  margin-bottom: 6px;
}

.page-faq .faq-support-value {
  display: block;
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--color-cream);
  line-height: 1.5;
  word-break: break-word;
}

.page-faq .faq-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 2px solid rgba(245, 240, 228, 0.15);
  grid-column: 1 / -1;
}

.page-faq .faq-support-links a {
  font-family: var(--font-data);
  font-size: 13px;
  color: rgba(245, 240, 228, 0.85);
  text-decoration: none;
  border-bottom: 1px solid var(--color-neon);
  transition: color 0.2s;
}

.page-faq .faq-support-links a:hover {
  color: var(--color-neon);
}

/* ===== 桌面增强 ===== */
@media (min-width: 768px) {
  .page-faq .faq-support-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-support-block--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 64px 0 80px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
  }

  .page-faq .faq-compare {
    padding: 88px 0 96px;
  }

  .page-faq .faq-compare-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .page-faq .faq-compare-item {
    padding: 24px 22px;
  }

  .page-faq .faq-change-item {
    padding: 22px;
  }

  .page-faq .faq-help {
    padding: 88px 0;
  }

  .page-faq .faq-help-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-faq .faq-support {
    padding: 88px 0 104px;
  }

  .page-faq .faq-support-inner {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
    padding: 48px;
  }
}