.page-disclaimer {
  --clause-gap: clamp(36px, 5vw, 72px);
  --num-col: 76px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 8vw, 120px);
}

.page-disclaimer .breadcrumb {
  padding-top: clamp(18px, 3.6vw, 36px);
}

.page-disclaimer .breadcrumb-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}

.page-disclaimer .breadcrumb-list li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--silver-dim);
}

.page-disclaimer .breadcrumb-list a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .breadcrumb-list a:hover,
.page-disclaimer .breadcrumb-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .instructions-hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
}

.page-disclaimer .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}

.page-disclaimer .hero-copy .kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .hero-copy h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(44px, 9.5vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .hero-lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--silver);
}

.page-disclaimer .hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px 24px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  max-width: 640px;
}

.page-disclaimer .hero-facts > div {
  display: grid;
  gap: 4px;
}

.page-disclaimer .hero-facts dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

.page-disclaimer .hero-facts dd {
  margin: 0;
  font-size: 14px;
  color: var(--white);
}

.page-disclaimer .hero-frame {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-disclaimer .hero-frame::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, transparent 50%, var(--ink) 50%);
  pointer-events: none;
}

.page-disclaimer .hero-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 主体两栏 ---------- */

.page-disclaimer .instructions-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  padding-top: clamp(30px, 4.6vw, 60px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .clause-index ol {
  list-style: none;
  display: flex;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-disclaimer .clause-index li {
  flex: 0 0 auto;
}

.page-disclaimer .index-link {
  display: block;
  padding: 8px 12px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--silver-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-disclaimer .index-link:hover,
.page-disclaimer .index-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .index-link.is-current {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 条款 ---------- */

.page-disclaimer .clause-flow {
  display: grid;
  gap: var(--clause-gap);
}

.page-disclaimer .clause {
  position: relative;
}

.page-disclaimer .clause-num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-disclaimer .clause-title {
  position: relative;
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-disclaimer .clause-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 48px;
  height: 2px;
  background: var(--orange);
}

.page-disclaimer .clause-body p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

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

.page-disclaimer .clause-body strong {
  color: var(--white);
  font-weight: 600;
}

.page-disclaimer .clause-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-press);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .clause-body a:hover,
.page-disclaimer .clause-body a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .clause-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 34em;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--silver);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 12px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 更新顺序示意 ---------- */

.page-disclaimer .update-panel {
  margin: 22px 0 22px;
  padding: 22px 0 8px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .update-caption {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver-dim);
}

.page-disclaimer .update-track {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-disclaimer .update-node {
  position: relative;
  padding: 4px 0 20px 22px;
  border-left: 2px solid var(--line);
  outline: none;
}

.page-disclaimer .update-node::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 4px;
  width: 14px;
  height: 14px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--orange);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-disclaimer .update-node:hover::before,
.page-disclaimer .update-node:focus-visible::before,
.page-disclaimer .update-node:focus::before {
  background: var(--orange);
}

.page-disclaimer .node-stage {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-disclaimer .node-title {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.2;
  color: var(--white);
}

.page-disclaimer .node-note {
  display: block;
  max-width: 26em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-disclaimer .node-detail {
  display: block;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  max-width: 26em;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver-dim);
  transition: max-height 0.32s var(--ease), opacity 0.25s var(--ease), margin-top 0.32s var(--ease);
}

.page-disclaimer .update-node:hover .node-detail,
.page-disclaimer .update-node:focus .node-detail,
.page-disclaimer .update-node:focus-within .node-detail {
  max-height: 160px;
  margin-top: 8px;
  opacity: 1;
}

/* ---------- 关键提示 ---------- */

.page-disclaimer .notice {
  margin: 20px 0 22px;
  padding: 16px 20px;
  max-width: 38em;
  border-left: 4px solid var(--orange);
  background: linear-gradient(90deg, rgba(255, 122, 26, 0.12), rgba(255, 122, 26, 0) 72%);
}

.page-disclaimer .notice-key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-disclaimer .notice p {
  margin: 0;
  max-width: none;
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}

/* ---------- 页尾衔接 ---------- */

.page-disclaimer .disclaimer-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .foot-note {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-dim);
}

/* ---------- 响应式 ---------- */

@media (max-width: 719px) {
  .page-disclaimer .update-node:last-child {
    padding-bottom: 6px;
  }

  .page-disclaimer .notice {
    padding: 14px 16px;
  }
}

@media (min-width: 720px) {
  .page-disclaimer .instructions-hero {
    padding-top: clamp(36px, 4vw, 64px);
  }

  .page-disclaimer .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-disclaimer .clause {
    padding-left: var(--num-col);
  }

  .page-disclaimer .clause-num {
    position: absolute;
    left: 0;
    top: 2px;
    margin: 0;
    font-size: 30px;
    letter-spacing: 0;
    line-height: 1;
  }

  .page-disclaimer .update-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-top: 30px;
  }

  .page-disclaimer .update-track::before {
    content: "";
    position: absolute;
    top: 12px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--line);
  }

  .page-disclaimer .update-node {
    padding: 0 26px 0 0;
    border-left: 0;
  }

  .page-disclaimer .update-node::before {
    left: 0;
    top: -24px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .instructions-body {
    grid-template-columns: 226px minmax(0, 1fr);
    column-gap: clamp(32px, 4vw, 64px);
  }

  .page-disclaimer .clause-index {
    position: sticky;
    top: 148px;
    align-self: start;
  }

  .page-disclaimer .clause-index ol {
    display: grid;
    gap: 2px;
    margin-top: 14px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-disclaimer .clause-index li {
    flex: none;
  }

  .page-disclaimer .index-link {
    padding: 9px 10px 9px 13px;
    border-bottom: 0;
    border-left: 2px solid var(--line);
    white-space: normal;
  }

  .page-disclaimer .index-link:hover,
  .page-disclaimer .index-link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--cyan);
  }

  .page-disclaimer .index-link.is-current {
    border-bottom-color: transparent;
    border-left-color: var(--orange);
    background: var(--panel);
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .clause-flow {
    max-width: 880px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .index-link,
  .page-disclaimer .node-detail,
  .page-disclaimer .update-node::before,
  .page-disclaimer .clause-body a {
    transition: none;
  }
}