/* ===== 使用条款与声明 · 页面专属样式 ===== */

.page-disclaimer {
  --dc-rail-w: 236px;
  --dc-measure: 68ch;
}

.page-disclaimer .dc-crumb {
  padding-top: 26px;
}

/* ---------- 页首 ---------- */
.page-disclaimer .dc-hero {
  position: relative;
  padding: 30px 0 8px;
  background:
    radial-gradient(1100px 420px at 12% -10%, rgba(35, 230, 208, .10), transparent 62%),
    radial-gradient(760px 360px at 88% 4%, rgba(255, 106, 43, .09), transparent 66%);
}

.page-disclaimer .dc-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(34px, 6.6vw, 62px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--cloud);
}

.page-disclaimer .dc-hero__lead {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .dc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.page-disclaimer .dc-hero__meta-note {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-disclaimer .dc-hero__figure {
  margin: 32px 0 0;
}

/* ---------- 双列骨架 ---------- */
.page-disclaimer .dc-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-top: 46px;
  padding-bottom: 56px;
}

/* ---------- 章节索引 ---------- */
.page-disclaimer .dc-rail__title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-disclaimer .dc-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-disclaimer .dc-rail__list li {
  margin: 0;
}

.page-disclaimer .dc-rail__list a {
  display: block;
  margin-left: -1px;
  padding: 10px 0 10px 16px;
  border-left: 2px solid transparent;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .dc-rail__list a:hover,
.page-disclaimer .dc-rail__list a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--lava);
  outline: none;
}

/* ---------- 条款章节 ---------- */
.page-disclaimer .dc-doc {
  min-width: 0;
}

.page-disclaimer .dc-clause {
  padding-bottom: 32px;
}

.page-disclaimer .dc-clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-disclaimer .dc-clause__num {
  flex: none;
  font-family: var(--mono);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lava);
}

.page-disclaimer .dc-clause__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--cloud);
}

.page-disclaimer .dc-clause__rule {
  height: 2px;
  margin: 16px 0 22px;
  border: 0;
  transform: skewX(-18deg);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--lava), var(--cyan) 46%, rgba(35, 230, 208, 0) 88%);
  opacity: .75;
}

.page-disclaimer .dc-clause__body {
  max-width: var(--dc-measure);
  font-size: 16px;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .dc-clause__body p {
  margin: 0 0 18px;
}

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

.page-disclaimer .dc-clause__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 230, 208, .4);
}

.page-disclaimer .dc-clause__body a:hover,
.page-disclaimer .dc-clause__body a:focus-visible {
  color: var(--lava-soft);
  border-bottom-color: var(--lava-soft);
  outline: none;
}

/* ---------- 条目列表 ---------- */
.page-disclaimer .dc-list {
  margin: 6px 0 20px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .dc-list li {
  position: relative;
  margin: 0 0 12px;
  padding-left: 22px;
  line-height: 1.7;
}

.page-disclaimer .dc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 11px;
  height: 2px;
  background: var(--cyan);
  transform: skewX(-18deg);
}

/* ---------- 暖金强调框 ---------- */
.page-disclaimer .dc-note {
  margin: 22px 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--gold);
  background: linear-gradient(96deg, rgba(242, 180, 65, .10), rgba(242, 180, 65, 0) 72%);
}

.page-disclaimer .dc-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cloud);
}

/* ---------- 条款变更展开 ---------- */
.page-disclaimer .dc-revision {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(11, 37, 64, .86), rgba(6, 26, 46, .5));
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

.page-disclaimer .dc-revision summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--cloud);
}

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

.page-disclaimer .dc-revision summary::before {
  content: "+";
  flex: none;
  width: 16px;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lava);
  text-align: center;
}

.page-disclaimer .dc-revision[open] summary::before {
  content: "–";
}

.page-disclaimer .dc-revision summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-disclaimer .dc-revision .dc-list {
  margin: 0;
  padding: 0 20px 18px;
}

.page-disclaimer .dc-revision .dc-list li {
  font-size: 15px;
  color: var(--mist);
}

/* ---------- 结尾 ---------- */
.page-disclaimer .dc-outro {
  margin-top: 8px;
  padding: 26px 0 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .dc-outro p {
  margin: 0 0 18px;
  max-width: var(--dc-measure);
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .dc-outro a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 230, 208, .4);
}

.page-disclaimer .dc-outro .dc-backtop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding: 9px 18px;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--cloud);
  text-decoration: none;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-disclaimer .dc-outro .dc-backtop:hover,
.page-disclaimer .dc-outro .dc-backtop:focus-visible {
  color: var(--lava-soft);
  border-color: var(--lava);
  background-color: rgba(255, 106, 43, .08);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .dc-hero {
    padding-top: 44px;
  }

  .page-disclaimer .dc-body {
    padding-top: 58px;
    padding-bottom: 72px;
  }

  .page-disclaimer .dc-clause {
    padding-bottom: 38px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .dc-body {
    grid-template-columns: var(--dc-rail-w) minmax(0, 1fr);
    gap: 64px;
    padding-top: 66px;
    padding-bottom: 90px;
  }

  .page-disclaimer .dc-rail {
    position: sticky;
    top: 92px;
    align-self: start;
  }

  .page-disclaimer .dc-clause {
    padding-bottom: 46px;
  }

  .page-disclaimer .dc-hero__figure {
    margin-top: 44px;
  }
}