.page-disclaimer {
  --pd-line: rgba(27, 70, 58, 0.42);
  --pd-text: rgba(238, 242, 231, 0.84);
  --pd-text-dim: rgba(238, 242, 231, 0.66);

  position: relative;
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--pd-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--pd-line) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: 0 0;
  color: var(--paper);
  padding: clamp(22px, 4vw, 44px) 0 clamp(48px, 8vw, 88px);
}

@media (min-width: 1024px) {
  .page-disclaimer {
    background-size: 64px 64px;
  }
}

/* ---------- 首屏 ---------- */

.page-disclaimer__hero {
  padding: clamp(20px, 3.5vw, 36px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--grid);
  margin-bottom: clamp(30px, 4.5vw, 52px);
}

.page-disclaimer__hero .eyebrow {
  margin: 0 0 14px;
}

.page-disclaimer__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 7.4vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 15em;
  color: var(--paper);
}

.page-disclaimer__lede {
  max-width: 56ch;
  margin: 0;
  color: var(--pd-text);
}

/* ---------- 双栏骨架 ---------- */

.page-disclaimer__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-disclaimer__layout {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: clamp(36px, 4vw, 56px);
    align-items: start;
  }
}

/* ---------- 条款编号快速跳转 ---------- */

.page-disclaimer__toc {
  border-top: 1px solid var(--grid);
  padding-top: 14px;
}

.page-disclaimer__toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-disclaimer__toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer__toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--grid);
  color: var(--pd-text);
  font-size: 13.5px;
  line-height: 1.3;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer__toc-link:hover,
.page-disclaimer__toc-link:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.page-disclaimer__toc-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--accent-dim);
}

.page-disclaimer__toc-link:hover .page-disclaimer__toc-num,
.page-disclaimer__toc-link:focus-visible .page-disclaimer__toc-num {
  color: var(--accent);
}

@media (min-width: 900px) {
  .page-disclaimer__toc {
    position: sticky;
    top: calc(var(--topbar) + 20px);
  }

  .page-disclaimer__toc-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-disclaimer__toc-link {
    display: flex;
    width: 100%;
    gap: 10px;
    padding: 10px 2px;
    border: 0;
    border-bottom: 1px solid var(--grid);
    color: var(--muted);
    font-size: 13px;
  }

  .page-disclaimer__toc-link:hover,
  .page-disclaimer__toc-link:focus-visible {
    border-bottom-color: var(--accent);
  }
}

/* ---------- 条款正文 ---------- */

.page-disclaimer__body {
  display: flex;
  flex-direction: column;
  gap: clamp(34px, 4.6vw, 54px);
  min-width: 0;
}

.page-disclaimer__clause {
  scroll-margin-top: calc(var(--topbar) + 28px);
}

.page-disclaimer__clause-head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--grid);
}

.page-disclaimer__clause-head::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 46px;
  height: 1px;
  background-color: var(--accent);
}

.page-disclaimer__clause-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 0.9;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-disclaimer__clause-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.8vw, 26px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer__verdict {
  margin: 22px 0 0;
  max-width: 26em;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.1vw, 29px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer__basis {
  margin: 12px 0 0;
  max-width: 64ch;
}

.page-disclaimer__para {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--pd-text);
}

.page-disclaimer__body a,
.page-disclaimer__foot a:not(.btn) {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--accent-dim);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur) var(--ease);
}

.page-disclaimer__body a:hover,
.page-disclaimer__foot a:not(.btn):hover,
.page-disclaimer__body a:focus-visible,
.page-disclaimer__foot a:not(.btn):focus-visible {
  text-decoration-color: var(--accent);
}

/* ---------- 三种用法 ---------- */

.page-disclaimer__cases {
  display: grid;
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--grid);
  border: 1px solid var(--grid);
}

@media (min-width: 720px) {
  .page-disclaimer__cases {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-disclaimer__case {
  background-color: var(--surface);
  padding: 18px 18px 20px;
}

.page-disclaimer__case-tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.page-disclaimer__case-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--pd-text);
}

/* ---------- 引用需保留项 ---------- */

.page-disclaimer__keeps {
  display: grid;
  gap: 11px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer__keeps li {
  position: relative;
  padding-left: 26px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.62;
  color: var(--pd-text);
}

.page-disclaimer__keeps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 14px;
  height: 1px;
  background-color: var(--accent);
  transition: width var(--dur) var(--ease);
}

.page-disclaimer__keeps li:hover::before {
  width: 20px;
}

/* ---------- 引用格式示例 ---------- */

.page-disclaimer__format {
  margin: 28px 0 0;
  padding: 18px 20px 20px;
  border: 1px solid var(--grid);
  border-left: 3px solid var(--accent);
  background-color: rgba(12, 38, 32, 0.72);
}

.page-disclaimer__format .eyebrow {
  margin: 0 0 10px;
}

.page-disclaimer__format-line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-disclaimer__format-hint {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 配图 ---------- */

.page-disclaimer__figure {
  margin: 28px 0 0;
  max-width: 540px;
}

.page-disclaimer__figure-frame {
  border: 1px solid var(--grid);
}

.page-disclaimer__figure-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-disclaimer__figure-caption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ---------- 折叠补充说明 ---------- */

.page-disclaimer__fold {
  margin: 26px 0 0;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-disclaimer__fold-summary {
  position: relative;
  display: block;
  padding: 13px 0 13px 24px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--accent-dim);
  transition: color var(--dur) var(--ease);
}

.page-disclaimer__fold-summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer__fold-summary::marker {
  content: "";
}

.page-disclaimer__fold-summary::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--accent);
}

.page-disclaimer__fold[open] .page-disclaimer__fold-summary::before {
  content: "\2013";
}

.page-disclaimer__fold-summary:hover {
  color: var(--accent);
}

.page-disclaimer__fold-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.page-disclaimer__fold-body {
  padding: 0 0 16px 24px;
}

.page-disclaimer__fold-body p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pd-text-dim);
}

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

/* ---------- 收束与反馈入口 ---------- */

.page-disclaimer__foot {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: 24px;
  border-top: 1px solid var(--grid);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 28px;
}

.page-disclaimer__foot-text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--pd-text);
}

.page-disclaimer__foot-cta {
  flex: none;
}

/* ---------- 窄屏 ---------- */

@media (max-width: 559px) {
  .page-disclaimer__clause-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-disclaimer__clause-num {
    font-size: 34px;
  }

  .page-disclaimer__verdict {
    margin-top: 18px;
  }

  .page-disclaimer__format {
    padding: 16px 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer a,
  .page-disclaimer__fold-summary,
  .page-disclaimer__keeps li::before {
    transition: none;
  }
}