/* ================= 使用协议页 page-disclaimer ================= */

.page-disclaimer {
  --dc-index-w: 182px;
  --dc-grid: rgba(127, 231, 255, 0.05);
  position: relative;
  padding-bottom: 80px;
  background:
    radial-gradient(880px 460px at 12% -10%, rgba(230, 25, 43, 0.18), transparent 62%),
    radial-gradient(680px 420px at 92% 4%, rgba(255, 198, 26, 0.08), transparent 66%),
    repeating-linear-gradient(135deg, var(--dc-grid) 0 1px, transparent 1px 26px),
    var(--night);
}

.page-disclaimer .breadcrumb {
  padding-top: 22px;
  padding-bottom: 4px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .dc-hero {
  padding-top: 14px;
  padding-bottom: 44px;
}

.page-disclaimer .dc-hero .eyebrow {
  margin: 0;
}

.page-disclaimer .dc-hero h1 {
  margin: 14px 0 0;
  max-width: 18ch;
  font-family: var(--font-head);
  font-size: clamp(30px, 7.4vw, 56px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-disclaimer .dc-hero h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 5px;
  margin-top: 18px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--red), var(--yellow));
}

.page-disclaimer .dc-hero__lead {
  margin: 22px 0 0;
  max-width: 70ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-disclaimer .dc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .dc-hero__media {
  margin: 34px 0 0;
  border-radius: var(--r-l);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-disclaimer .dc-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体：目录轨道 + 条款 ---------- */

.page-disclaimer .dc-body {
  padding-top: 34px;
  padding-bottom: 20px;
}

.page-disclaimer .dc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-disclaimer .dc-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-disclaimer .dc-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-disclaimer .dc-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--text-soft);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.page-disclaimer .dc-rail__link:hover,
.page-disclaimer .dc-rail__link:focus-visible {
  color: var(--white);
  border-color: var(--green);
  background: var(--glass-strong);
  outline: none;
}

.page-disclaimer .dc-rail__no {
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  color: var(--yellow);
}

/* ---------- 条款 ---------- */

.page-disclaimer .dc-clauses {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-disclaimer .dc-clause {
  scroll-margin-top: calc(var(--bar-h) + 22px);
}

.page-disclaimer .dc-clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0 16px;
  border-top: 1px solid var(--line);
  list-style: none;
  cursor: pointer;
  transition: color 0.25s ease;
}

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

.page-disclaimer .dc-clause__head:hover .dc-clause__title,
.page-disclaimer .dc-clause__head:focus-visible .dc-clause__title {
  color: var(--yellow);
}

.page-disclaimer .dc-clause__head:focus-visible {
  outline: 2px solid rgba(43, 227, 122, 0.45);
  outline-offset: 4px;
  border-radius: var(--r-s);
}

.page-disclaimer .dc-clause__no {
  flex: none;
  min-width: 2.2em;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

.page-disclaimer .dc-clause__title {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-size: clamp(19px, 4.6vw, 24px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
  transition: color 0.25s ease;
}

.page-disclaimer .dc-clause__cue {
  position: relative;
  flex: none;
  align-self: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-disclaimer .dc-clause__cue::before,
.page-disclaimer .dc-clause__cue::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--green);
  transform: translate(-50%, -50%);
}

.page-disclaimer .dc-clause__cue::before {
  width: 9px;
  height: 1.5px;
}

.page-disclaimer .dc-clause__cue::after {
  width: 1.5px;
  height: 9px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.page-disclaimer .dc-clause[open] .dc-clause__cue {
  border-color: var(--green);
  transform: rotate(180deg);
}

.page-disclaimer .dc-clause[open] .dc-clause__cue::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-disclaimer .dc-clause__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 8px;
  padding: 2px 0 26px 16px;
  border-left: 2px solid rgba(230, 25, 43, 0.45);
}

.page-disclaimer .dc-clause__body p {
  margin: 0;
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-disclaimer .dc-clause__body .dc-key {
  font-family: var(--font-num);
  font-weight: 600;
  color: var(--cyan);
  padding: 0 2px;
}

.page-disclaimer .dc-clause:target .dc-clause__title {
  color: var(--yellow);
}

.page-disclaimer .dc-clause:target .dc-clause__body {
  border-left-color: var(--yellow);
}

/* ---------- 收束条 ---------- */

.page-disclaimer .dc-outro-wrap {
  padding-top: 26px;
  padding-bottom: 10px;
}

.page-disclaimer .dc-outro {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 26px 22px;
  border-radius: var(--r-l);
}

.page-disclaimer .dc-outro__text {
  min-width: 0;
}

.page-disclaimer .dc-outro__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .dc-outro__desc {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-disclaimer .dc-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-disclaimer {
    --dc-index-w: 182px;
    padding-bottom: 110px;
  }

  .page-disclaimer .dc-hero {
    padding-top: 26px;
    padding-bottom: 54px;
  }

  .page-disclaimer .dc-hero h1 {
    max-width: 20ch;
  }

  .page-disclaimer .dc-hero__lead {
    font-size: 17px;
  }

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

  .page-disclaimer .dc-layout {
    grid-template-columns: minmax(0, var(--dc-index-w)) minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-disclaimer .dc-rail {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }

  .page-disclaimer .dc-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .dc-rail__link {
    position: relative;
    width: 100%;
    padding: 10px 14px;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .page-disclaimer .dc-rail__link::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 50%;
    width: 2px;
    height: 20px;
    background: var(--red);
    transform: translateY(-50%) scaleY(0);
    transform-origin: center;
    transition: transform 0.25s ease;
  }

  .page-disclaimer .dc-rail__link:hover,
  .page-disclaimer .dc-rail__link:focus-visible {
    background: transparent;
    border-color: transparent;
    color: var(--yellow);
  }

  .page-disclaimer .dc-rail__link:hover::before,
  .page-disclaimer .dc-rail__link:focus-visible::before {
    transform: translateY(-50%) scaleY(1);
  }

  .page-disclaimer .dc-clause__head {
    padding: 24px 0 18px;
    gap: 20px;
  }

  .page-disclaimer .dc-clause__body {
    padding: 4px 0 32px 18px;
  }

  .page-disclaimer .dc-outro {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    padding: 32px 34px;
  }

  .page-disclaimer .dc-outro__actions {
    flex: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-rail__link,
  .page-disclaimer .dc-clause__cue,
  .page-disclaimer .dc-clause__cue::after,
  .page-disclaimer .dc-clause__title,
  .page-disclaimer .dc-rail__link::before {
    transition: none;
  }
}
<<<END>>>