.page-disclaimer {
  --clause-cut: 20px;
  --ref-line: rgba(10, 42, 67, .14);
  --clause-ink: rgba(10, 42, 67, .78);
  background: var(--sand);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-mute);
}

.page-disclaimer .breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: rgba(10, 42, 67, .28);
}

.page-disclaimer .breadcrumb-item a {
  color: var(--ink-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-disclaimer .breadcrumb-item a:hover {
  color: var(--deep);
  border-bottom-color: var(--coral);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding-top: 30px;
  padding-bottom: 34px;
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(105, 213, 198, .22) 0%, rgba(105, 213, 198, 0) 58%),
    linear-gradient(180deg, var(--sand) 0%, var(--mist) 62%, var(--sand) 100%);
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(31, 158, 154, 0), rgba(31, 158, 154, .5), rgba(255, 107, 74, .35), rgba(31, 158, 154, 0));
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  gap: 30px;
}

.page-disclaimer .usage-hero h1 {
  margin: 10px 0 18px;
  font-size: clamp(30px, 7vw, 62px);
  line-height: 1.14;
  letter-spacing: -.01em;
  font-weight: 800;
  max-width: 15em;
}

.page-disclaimer .usage-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.95;
  color: var(--clause-ink);
}

.page-disclaimer .usage-meta {
  display: grid;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ref-line);
}

.page-disclaimer .usage-meta li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 18px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--ref-line);
  font-size: 14px;
  line-height: 1.7;
}

.page-disclaimer .usage-meta__k {
  color: var(--ink-mute);
  letter-spacing: .08em;
}

.page-disclaimer .usage-meta__v {
  color: var(--deep);
  font-weight: 600;
}

.page-disclaimer .usage-meta__v--mono,
.page-disclaimer .usage-contact__v--mono {
  font-family: "IBM Plex Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .02em;
}

.page-disclaimer .usage-hero__art {
  border-radius: 4px var(--clause-cut) 4px var(--clause-cut);
  box-shadow: var(--shadow-card);
  align-self: center;
}

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

/* ---------- 骨架 ---------- */
.page-disclaimer .usage-body {
  padding-top: 44px;
  padding-bottom: 72px;
}

.page-disclaimer .usage-layout {
  display: grid;
  gap: 28px;
}

/* ---------- 左侧编号目录 ---------- */
.page-disclaimer .usage-index__title {
  margin: 0 0 14px;
}

.page-disclaimer .usage-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-disclaimer .usage-index__list li {
  flex: 0 0 auto;
}

.page-disclaimer .usage-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  white-space: nowrap;
  text-decoration: none;
  font-size: 14px;
  color: var(--ink-soft);
  background: var(--mist);
  border: 1px solid var(--ref-line);
  border-radius: 999px;
  transition: color .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease);
}

.page-disclaimer .usage-index__list a:hover {
  color: var(--deep);
  border-color: var(--coral-soft);
  transform: translateY(-2px);
}

.page-disclaimer .usage-index__num {
  font-family: "IBM Plex Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--teal-deep);
  letter-spacing: .08em;
}

/* ---------- 条款卡 ---------- */
.page-disclaimer .usage-clauses {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-disclaimer .clause {
  position: relative;
  padding: 26px 20px 24px;
  background: var(--mist);
  border: 1px solid var(--ref-line);
  border-left: 3px solid var(--teal);
  border-radius: 2px var(--clause-cut) 2px var(--clause-cut);
  box-shadow: var(--shadow-card);
  scroll-margin-top: 120px;
  transition: border-left-color .24s var(--ease), transform .24s var(--ease);
}

.page-disclaimer .clause:hover {
  border-left-color: var(--coral);
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ref-line);
}

.page-disclaimer .clause__num {
  font-family: "IBM Plex Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--teal);
  letter-spacing: .02em;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 27px);
  font-weight: 800;
  line-height: 1.3;
}

.page-disclaimer .clause p {
  margin: 0 0 1.1em;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--clause-ink);
}

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

.page-disclaimer .clause__list {
  display: grid;
  gap: 10px;
  margin: 0 0 1.1em;
  padding: 0;
  list-style: none;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--clause-ink);
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: .72em;
  width: 8px;
  height: 8px;
  background: var(--grad-teal);
  transform: rotate(45deg);
}

.page-disclaimer .clause__list--stop li::before {
  background: var(--coral);
}

.page-disclaimer .clause__more {
  margin-top: 18px !important;
  font-size: 15px;
}

.page-disclaimer .clause__more a {
  display: inline-block;
  color: var(--teal-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--coral-soft);
  padding-bottom: 2px;
  transition: border-color .24s var(--ease), color .24s var(--ease);
}

.page-disclaimer .clause__more a:hover {
  color: var(--deep);
  border-bottom-color: var(--coral);
}

.page-disclaimer .clause__callout {
  margin-top: 20px;
  padding: 16px 18px;
  background: rgba(255, 107, 74, .08);
  border-left: 3px solid var(--coral);
  border-radius: 0 var(--clause-cut) 0 var(--clause-cut);
}

.page-disclaimer .clause__callout-title {
  margin: 0 0 12px !important;
  font-size: 14px !important;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--coral-deep) !important;
}

.page-disclaimer .clause__callout .clause__list {
  margin-bottom: 0;
}

/* ---------- 分段切换 ---------- */
.page-disclaimer .tabs {
  margin: 20px 0 20px;
}

.page-disclaimer .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-disclaimer .tab {
  padding: 9px 18px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink-soft);
  background: var(--sand);
  border: 1px solid var(--ref-line);
  border-radius: 999px;
  cursor: pointer;
  transition: background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
}

.page-disclaimer .tab:hover {
  border-color: var(--coral-soft);
  color: var(--deep);
}

.page-disclaimer .tab[aria-selected="true"] {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--sand);
}

.page-disclaimer .tabpanel {
  padding: 16px 18px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--clause-ink);
  background: var(--sand);
  border-radius: 0 var(--clause-cut) 0 var(--clause-cut);
}

.page-disclaimer .tabpanel:last-child {
  margin-bottom: 0;
}

/* ---------- 相关入口 ---------- */
.page-disclaimer .clause__refs {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
}

.page-disclaimer .ref-card {
  display: block;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--ink);
  background: var(--sand);
  border: 1px solid transparent;
  border-radius: 0 var(--clause-cut) 0 var(--clause-cut);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-disclaimer .ref-card:hover {
  transform: translateY(-3px);
  border-color: var(--coral);
}

.page-disclaimer .ref-card__t {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-disclaimer .ref-card__d {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 联系方式 ---------- */
.page-disclaimer .usage-contact {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ref-line);
}

.page-disclaimer .usage-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--ref-line);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-disclaimer .usage-contact__k {
  min-width: 84px;
  color: var(--ink-mute);
  letter-spacing: .06em;
}

.page-disclaimer .usage-contact__v {
  color: var(--deep);
  font-weight: 600;
  word-break: break-word;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 700px) {
  .page-disclaimer .usage-body {
    padding-top: 56px;
    padding-bottom: 96px;
  }

  .page-disclaimer .clause {
    padding: 32px 34px 30px;
  }

  .page-disclaimer .clause__refs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: center;
    gap: 56px;
  }

  .page-disclaimer .usage-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-disclaimer .usage-index {
    position: sticky;
    top: 112px;
  }

  .page-disclaimer .usage-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-disclaimer .usage-index__list a {
    width: 100%;
    padding: 11px 0 11px 14px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0;
    background: transparent;
    font-size: 14.5px;
  }

  .page-disclaimer .usage-index__list a:hover {
    transform: none;
    background: rgba(255, 107, 74, .06);
    border-left-color: var(--coral);
  }

  .page-disclaimer .usage-index__list a:focus-visible {
    border-left-color: var(--coral);
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-disclaimer {
    background: #fff;
    color: #000;
  }

  .page-disclaimer .usage-index,
  .page-disclaimer .usage-hero__art,
  .page-disclaimer .tablist {
    display: none;
  }

  .page-disclaimer .usage-layout {
    display: block;
  }

  .page-disclaimer .clause {
    box-shadow: none;
    border: 1px solid #999;
    border-left: 3px solid #666;
    break-inside: avoid;
    margin-bottom: 16px;
  }

  .page-disclaimer .tabpanel {
    background: none;
    border: 1px dashed #bbb;
  }
}