.page-disclaimer {
  --disc-wave: 16px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  display: block;
  overflow-x: hidden;
}

.page-disclaimer [data-season="spring"] { --season: var(--spring); }
.page-disclaimer [data-season="summer"] { --season: var(--summer); }
.page-disclaimer [data-season="autumn"] { --season: var(--autumn); }
.page-disclaimer [data-season="winter"] { --season: var(--winter-deep); }

.page-disclaimer .breadcrumb {
  padding-top: clamp(20px, 4vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-disclaimer__hero {
  padding-top: clamp(16px, 3vw, 30px);
}

.page-disclaimer__hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 52px);
  align-items: end;
}

.page-disclaimer__hero-copy {
  max-width: 40ch;
}

.page-disclaimer__hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 6.6vw, 54px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.005em;
  margin: 14px 0 20px;
  text-wrap: balance;
}

.page-disclaimer__lede {
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.page-disclaimer__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--season);
}

.page-disclaimer__hero-figure {
  margin: 0;
  clip-path: polygon(0 var(--disc-wave), var(--disc-wave) 0, 100% 0, 100% calc(100% - var(--disc-wave)), calc(100% - var(--disc-wave)) 100%, 0 100%);
  background: linear-gradient(140deg, var(--mist), var(--white));
  overflow: hidden;
}

.page-disclaimer__hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 索引 ---------- */
.page-disclaimer__toc {
  background: var(--mist);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), 0 100%);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-disclaimer__toc h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 500;
  line-height: 1.3;
  margin: 12px 0 8px;
}

.page-disclaimer__toc-lede {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-disclaimer__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--rule);
}

.page-disclaimer__toc-list li {
  border-bottom: 1px solid var(--rule-soft);
}

.page-disclaimer__toc-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 2px;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.22s ease;
}

.page-disclaimer__toc-list a:hover,
.page-disclaimer__toc-list a:focus-visible {
  color: var(--season);
}

.page-disclaimer__toc-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
  flex: 0 0 auto;
  padding-top: 3px;
}

.page-disclaimer__toc-label {
  position: relative;
  font-size: 15px;
  line-height: 1.5;
}

.page-disclaimer__toc-label::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  height: 1px;
  width: 0;
  background: var(--season);
  transition: width 0.28s ease;
}

.page-disclaimer__toc-list a:hover .page-disclaimer__toc-label::after,
.page-disclaimer__toc-list a:focus-visible .page-disclaimer__toc-label::after {
  width: 100%;
}

/* ---------- 条款堆叠 ---------- */
.page-disclaimer__clauses {
  padding-top: clamp(40px, 6vw, 84px);
}

.page-disclaimer__stack {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-disclaimer__clause {
  position: relative;
  background: var(--white);
  border: 1px solid var(--rule-soft);
  padding: clamp(22px, 4.2vw, 38px);
  clip-path: polygon(0 0, calc(100% - var(--disc-wave)) 0, 100% var(--disc-wave), 100% 100%, var(--disc-wave) 100%, 0 calc(100% - var(--disc-wave)));
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-disclaimer__clause:hover,
.page-disclaimer__clause:focus-within {
  border-color: var(--season);
  background: var(--paper);
}

.page-disclaimer__clause-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule-soft);
}

.page-disclaimer__clause-num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 26px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--season);
  flex: 0 0 auto;
}

.page-disclaimer__clause-title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.3vw, 24px);
  font-weight: 500;
  line-height: 1.4;
  margin: 0;
  color: var(--ink);
}

.page-disclaimer__clause-body p {
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 0 0 12px;
  max-width: 68ch;
}

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

.page-disclaimer__clause-body a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-disclaimer__clause-body a:hover,
.page-disclaimer__clause-body a:focus-visible {
  color: var(--season);
  border-bottom-color: var(--season);
}

/* ---------- 折叠 ---------- */
.page-disclaimer__fold {
  margin-top: 18px;
  border-top: 1px dashed var(--rule);
  padding-top: 14px;
}

.page-disclaimer__fold summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.22s ease;
}

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

.page-disclaimer__fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--season);
  transition: transform 0.24s ease;
}

.page-disclaimer__fold[open] summary::before {
  transform: rotate(45deg);
}

.page-disclaimer__fold summary:hover,
.page-disclaimer__fold summary:focus-visible {
  color: var(--season);
}

.page-disclaimer__fold p {
  font-size: clamp(14px, 1vw, 16px);
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 12px 0 0;
  max-width: 68ch;
}

.page-disclaimer__fold p a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.page-disclaimer__fold p a:hover {
  color: var(--season);
  border-bottom-color: var(--season);
}

/* ---------- 收束 ---------- */
.page-disclaimer__closing {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-disclaimer__closing-panel {
  background: linear-gradient(160deg, var(--winter), var(--mist));
  border: 1px solid var(--rule-soft);
  padding: clamp(24px, 4.4vw, 44px);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-disclaimer__closing-mark {
  font-family: var(--font-narrow), var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--winter-deep);
  margin: 0 0 12px;
}

.page-disclaimer__closing-text {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 22px;
  max-width: 34ch;
}

.page-disclaimer__closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer__band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: 6px;
  margin-top: clamp(24px, 4vw, 40px);
  overflow: hidden;
}

.page-disclaimer__band-a { background: var(--spring); }
.page-disclaimer__band-b { background: var(--summer); }
.page-disclaimer__band-c { background: var(--autumn); }
.page-disclaimer__band-d { background: var(--winter-deep); }

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-disclaimer__toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }
}

@media (min-width: 900px) {
  .page-disclaimer__hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-disclaimer__clause:nth-child(odd) {
    margin-right: clamp(0px, 7vw, 110px);
  }

  .page-disclaimer__clause:nth-child(even) {
    margin-left: clamp(0px, 7vw, 110px);
  }

  .page-disclaimer__stack {
    gap: clamp(18px, 2vw, 30px);
  }
}

@media (min-width: 1180px) {
  .page-disclaimer__toc-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
<<<END>>>

根据您的要求，我已完成“站点使用条款”（/terms-of-use/）页面的主体 HTML 与专属 CSS 创作。所有内容均严格限定在 `.page-disclaimer` 作用域内，未修改任何共享头部或页脚选择器，也未引入外部资源或虚假链接。页面围绕“使用条款、内容使用规范、版本说明边界、外部链接、备案信息”五个主题展开，通过编号条款、可折叠说明和明确的分段结构呈现访问、转发、版权、责任与联系等实际规则。所有数字、版本号、联系方式和备案号均直接使用输入资料中的最终值，未使用任何脚本填充占位符，也未含内部规划措辞或营销话术。图片使用占位协议，仅作为抽象视觉提示，并提供了具体 alt 描述。