.page-disclaimer {
  --dc-measure: 68ch;
  --dc-sheet-max: 780px;
  background: var(--fb-ink-900);
  color: var(--fb-text);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  padding: 34px 0 44px;
  background:
    radial-gradient(130% 110% at 6% -12%, rgba(53, 227, 224, .13), transparent 58%),
    radial-gradient(90% 90% at 100% 0%, rgba(255, 122, 26, .10), transparent 62%),
    var(--fb-ink-900);
}

.page-disclaimer .dc-hero .fb-breadcrumb {
  margin-bottom: 30px;
}

.page-disclaimer .dc-hero__title {
  margin: 12px 0 0;
  font-size: clamp(36px, 8vw, 66px);
}

.page-disclaimer .dc-hero__lead {
  margin-top: 16px;
  max-width: 56ch;
}

.page-disclaimer .dc-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--fb-hairline);
  list-style: none;
}

.page-disclaimer .dc-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-disclaimer .dc-hero__num {
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1;
}

.page-disclaimer .dc-hero__unit {
  font-size: 12.5px;
  color: var(--fb-text-muted);
  line-height: 1.5;
}

/* ---------- 通栏纹理 ---------- */
.page-disclaimer .dc-banner {
  margin: 0;
  background: var(--fb-ink-700);
  border-top: 1px solid var(--fb-hairline);
  border-bottom: 1px solid var(--fb-hairline);
  overflow: hidden;
}

.page-disclaimer .dc-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(130px, 24vw, 280px);
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(.85) contrast(1.06);
}

/* ---------- 刻度导航 ---------- */
.page-disclaimer .dc-scale {
  position: sticky;
  top: 0;
  z-index: 7;
  background: rgba(10, 24, 38, .95);
  border-bottom: 1px solid var(--fb-hairline);
  backdrop-filter: blur(10px);
}

.page-disclaimer .dc-scale__track {
  display: flex;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  background-image: repeating-linear-gradient(90deg, rgba(53, 227, 224, .22) 0 1px, transparent 1px 18px);
  background-size: 100% 6px;
  background-position: left bottom;
  background-repeat: repeat-x;
}

.page-disclaimer .dc-scale__track::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .dc-scale__link {
  flex: 0 0 auto;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 15px 14px 13px;
  font-size: 13px;
  color: var(--fb-text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--fb-ease), border-color var(--fb-ease), background-color var(--fb-ease);
}

.page-disclaimer .dc-scale__link:hover,
.page-disclaimer .dc-scale__link:focus-visible {
  color: var(--fb-text);
  border-bottom-color: var(--fb-cyan);
  background: rgba(53, 227, 224, .06);
}

.page-disclaimer .dc-scale__no {
  font-family: var(--fb-font-num);
  font-size: 11.5px;
  color: var(--fb-orange);
}

/* ---------- 条款纸面 ---------- */
.page-disclaimer .dc-sheet {
  background-color: var(--fb-paper);
  background-image: repeating-linear-gradient(180deg, rgba(15, 31, 46, .04) 0 1px, transparent 1px 36px);
  color: var(--fb-text-on-light);
  padding: 48px 0 56px;
}

.page-disclaimer .dc-sheet__inner {
  max-width: var(--dc-sheet-max);
}

.page-disclaimer .dc-clause {
  border-top: 1px solid var(--fb-hairline-on-paper);
  scroll-margin-top: 76px;
}

.page-disclaimer .dc-clause:last-child {
  border-bottom: 1px solid var(--fb-hairline-on-paper);
}

.page-disclaimer .dc-clause:target {
  background: rgba(255, 122, 26, .09);
}

.page-disclaimer .dc-clause__summary {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: baseline;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .dc-clause__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .dc-clause__num {
  font-family: var(--fb-font-num);
  font-size: 17px;
  line-height: 1.2;
  color: var(--fb-text-on-light);
  opacity: .55;
}

.page-disclaimer .dc-clause__title {
  font-family: var(--fb-font-head);
  font-weight: 700;
  font-size: clamp(19px, 4vw, 26px);
  line-height: 1.25;
  letter-spacing: -.005em;
  color: var(--fb-text-on-light);
}

.page-disclaimer .dc-clause__toggle {
  font-family: var(--fb-font-num);
  font-size: 16px;
  line-height: 1.4;
  color: var(--fb-orange);
  text-align: right;
}

.page-disclaimer .dc-clause__toggle::before {
  content: "+";
}

.page-disclaimer .dc-clause[open] .dc-clause__toggle::before {
  content: "\2212";
}

.page-disclaimer .dc-clause__body {
  padding: 0 0 28px;
  max-width: var(--dc-measure);
  font-size: 16px;
  line-height: 1.82;
}

.page-disclaimer .dc-clause__body p {
  margin: 0 0 14px;
}

.page-disclaimer .dc-clause__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .dc-clause__body a {
  color: var(--fb-text-on-light);
  text-decoration: none;
  border-bottom: 1px solid var(--fb-orange);
}

.page-disclaimer .dc-clause__body a:hover,
.page-disclaimer .dc-clause__body a:focus-visible {
  color: #8a3c00;
}

.page-disclaimer .dc-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .dc-list li {
  position: relative;
  padding-left: 20px;
  line-height: 1.78;
}

.page-disclaimer .dc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 7px;
  background: var(--fb-orange);
}

.page-disclaimer .dc-list strong {
  font-weight: 700;
}

/* ---------- 收尾深色区 ---------- */
.page-disclaimer .dc-tail {
  background:
    linear-gradient(180deg, rgba(14, 59, 58, .55) 0%, rgba(10, 24, 38, 1) 58%),
    var(--fb-ink-900);
  border-top: 1px solid var(--fb-hairline);
  padding: 50px 0 68px;
}

.page-disclaimer .dc-tail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 42px;
}

.page-disclaimer .dc-tail__col {
  scroll-margin-top: 76px;
  min-width: 0;
}

.page-disclaimer .dc-tail__col .fb-h2 {
  margin: 12px 0 0;
}

.page-disclaimer .dc-tail__text {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fb-text-muted);
}

.page-disclaimer .dc-contact {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--fb-hairline);
}

.page-disclaimer .dc-contact li {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--fb-hairline);
}

.page-disclaimer .dc-contact__key {
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fb-text-muted);
}

.page-disclaimer .dc-contact__val {
  font-size: 15px;
  line-height: 1.7;
  color: var(--fb-text);
  word-break: break-word;
}

.page-disclaimer .dc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-disclaimer .dc-tail__legal {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--fb-hairline);
  font-family: var(--fb-font-num);
  font-size: 12.5px;
  color: var(--fb-text-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .dc-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .dc-contact li {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .dc-hero {
    padding: 46px 0 58px;
  }

  .page-disclaimer .dc-sheet {
    padding: 64px 0 76px;
  }

  .page-disclaimer .dc-clause__summary {
    grid-template-columns: 42px minmax(0, 1fr) 24px;
    gap: 16px;
    padding: 26px 0;
  }

  .page-disclaimer .dc-clause__body {
    padding-left: 58px;
    padding-bottom: 34px;
  }

  .page-disclaimer .dc-tail {
    padding: 66px 0 88px;
  }

  .page-disclaimer .dc-tail__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 64px;
  }
}