.page-disclaimer {
  --d-rail: 320px;
  --d-gap: clamp(20px, 4vw, 48px);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-disclaimer .breadcrumb {
  padding-top: 18px;
  font-size: 13px;
}

.page-disclaimer .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  color: var(--mint);
}

.page-disclaimer .breadcrumb span {
  color: var(--mute);
}

/* ---------- 顶部横幅 ---------- */
.page-disclaimer .doc-hero {
  position: relative;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(63, 240, 196, 0.07), rgba(4, 20, 15, 0) 62%),
    var(--ink-2);
}

.page-disclaimer .doc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(63, 240, 196, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(63, 240, 196, 0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, #000, transparent 78%);
}

.page-disclaimer .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
}

.page-disclaimer .hero-copy .kicker {
  margin: 0 0 12px;
}

.page-disclaimer h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(26px, 6.4vw, 46px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .lede {
  margin: 16px 0 0;
  max-width: 38em;
  font-size: clamp(15px, 3.6vw, 17px);
  line-height: 1.8;
  color: var(--paper);
}

.page-disclaimer .hero-stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-disclaimer .hero-stats .display-num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(28px, 7vw, 44px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-disclaimer .stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
}

.page-disclaimer .hero-copy .meta {
  margin: 18px 0 0;
}

.page-disclaimer .hero-fig {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-disclaimer .hero-fig img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 双栏主体 ---------- */
.page-disclaimer .doc-layout {
  display: grid;
  gap: var(--d-gap);
  padding-top: clamp(30px, 5vw, 64px);
}

.page-disclaimer .doc-body {
  min-width: 0;
}

.page-disclaimer .clause {
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .clause:first-child {
  padding-top: 0;
}

.page-disclaimer .clause-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 4.4vw, 29px);
  line-height: 1.35;
  color: var(--paper);
}

.page-disclaimer .clause-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--mint);
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.page-disclaimer .clause-num:hover,
.page-disclaimer .clause-num:focus-visible {
  background: var(--mint);
  color: var(--ink);
}

.page-disclaimer .clause p {
  margin: 0 0 12px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper);
}

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

.page-disclaimer .clause p a {
  color: var(--mint);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

.page-disclaimer .clause p a:hover,
.page-disclaimer .clause p a:focus-visible {
  text-decoration-color: var(--mint);
}

/* ---------- 右侧要点速览 ---------- */
.page-disclaimer .doc-aside {
  min-width: 0;
}

.page-disclaimer .brief-card {
  padding: clamp(18px, 3vw, 26px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
}

.page-disclaimer .brief-card .kicker {
  margin: 0;
}

.page-disclaimer .brief-title {
  margin: 10px 0 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.35;
  color: var(--paper);
}

.page-disclaimer .brief-list {
  margin: 0 0 16px;
  padding: 0;
}

.page-disclaimer .brief-list > div {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .brief-list > div:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .brief-list dt {
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-disclaimer .brief-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-disclaimer .brief-card .meta {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--mint);
}

.page-disclaimer .brief-tip {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 更新节奏时间线 ---------- */
.page-disclaimer .timeline-section {
  padding-top: clamp(34px, 6vw, 72px);
}

.page-disclaimer .timeline-section .section-head {
  margin-bottom: 24px;
}

.page-disclaimer .section-sub {
  margin: 10px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mute);
}

.page-disclaimer .timeline {
  list-style: none;
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.page-disclaimer .tl-item {
  position: relative;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--line);
}

.page-disclaimer .tl-item::before {
  content: "";
  position: absolute;
  top: 7px;
  left: -4px;
  width: 7px;
  height: 7px;
  background: var(--mint);
  transition: background-color 0.18s ease;
}

.page-disclaimer .tl-when {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mint);
  transition: color 0.18s ease;
}

.page-disclaimer .tl-what {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

/* ---------- 桌面端栅格 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-disclaimer .tl-item {
    padding: 20px 20px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-disclaimer .tl-item::before {
    top: -4px;
    left: 0;
  }

  .page-disclaimer .tl-item:last-child {
    padding-right: 0;
  }

  .page-disclaimer .tl-item:hover {
    border-top-color: var(--orange);
  }

  .page-disclaimer .tl-item:hover::before {
    background: var(--orange);
  }

  .page-disclaimer .tl-item:hover .tl-when {
    color: var(--orange);
  }
}

@media (min-width: 960px) {
  .page-disclaimer .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: minmax(0, 1fr) var(--d-rail);
    align-items: start;
  }

  .page-disclaimer .doc-aside .rail-sticky {
    position: sticky;
    top: 24px;
  }
}

@media (max-width: 560px) {
  .page-disclaimer .hero-stats {
    gap: 14px 20px;
  }

  .page-disclaimer .clause-num {
    width: 40px;
    height: 40px;
    font-size: 13px;
  }

  .page-disclaimer .clause-head {
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause-num,
  .page-disclaimer .tl-item,
  .page-disclaimer .tl-item::before,
  .page-disclaimer .tl-when {
    transition: none;
  }
}