.page-disclaimer {
  --disc-spring: var(--spring);
  background: var(--paper-50);
  color: var(--paper-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  letter-spacing: 0.01em;
}
.page-disclaimer *,
.page-disclaimer *::before,
.page-disclaimer *::after {
  box-sizing: border-box;
}
.page-disclaimer p {
  margin: 0 0 14px;
  max-width: 72ch;
}
.page-disclaimer a {
  color: #17517a;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.page-disclaimer a:hover {
  color: #0d3855;
}
.page-disclaimer strong {
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .doc-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-950);
  color: var(--text);
  padding: 26px 0 52px;
}
.page-disclaimer .doc-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-disclaimer .doc-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  display: block;
}
.page-disclaimer .doc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(8, 12, 16, 0.5) 0%, rgba(8, 12, 16, 0.92) 78%, var(--ink-950) 100%);
}
.page-disclaimer .doc-hero__inner {
  position: relative;
  z-index: 1;
}
.page-disclaimer .doc-hero .breadcrumbs {
  color: var(--slate);
  font-size: 0.8125rem;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.page-disclaimer .doc-hero .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-disclaimer .doc-hero .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--line-strong);
}
.page-disclaimer .doc-hero .breadcrumbs__link {
  color: var(--winter);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 227, 235, 0.35);
}
.page-disclaimer .doc-hero .eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--autumn);
  margin: 0 0 14px;
  padding-left: 32px;
  position: relative;
}
.page-disclaimer .doc-hero .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 24px;
  height: 3px;
  background: var(--autumn);
}
.page-disclaimer .doc-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 7vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 22ch;
  color: #fff;
}
.page-disclaimer .doc-hero .lede {
  font-size: 1rem;
  color: var(--text-soft);
  max-width: 60ch;
  margin: 0;
}
.page-disclaimer .doc-hero__meta {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-disclaimer .doc-hero__meta-item {
  font-size: 0.875rem;
  color: var(--text-soft);
  border-left: 3px solid var(--spring);
  padding-left: 14px;
}
.page-disclaimer .doc-hero__meta-item:nth-child(2) {
  border-color: var(--summer);
}
.page-disclaimer .doc-hero__meta-item:nth-child(3) {
  border-color: var(--autumn);
}
.page-disclaimer .doc-hero__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--winter);
  margin-bottom: 2px;
}

/* ---------- 正文骨架 ---------- */
.page-disclaimer .doc-shell {
  background: var(--paper-50);
  padding: 40px 0 56px;
}
.page-disclaimer .doc-grid {
  display: grid;
  gap: 28px;
}

/* ---------- 目录 ---------- */
.page-disclaimer .doc-toc__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-ink);
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--paper-ink);
}
.page-disclaimer .doc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-disclaimer .doc-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 7px 8px 7px 10px;
  font-size: 0.9375rem;
  color: var(--paper-ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), padding-left 0.25s var(--ease);
}
.page-disclaimer .doc-toc__link:hover,
.page-disclaimer .doc-toc__link:focus-visible {
  border-left-color: var(--summer);
  background: rgba(55, 199, 255, 0.12);
  padding-left: 14px;
}
.page-disclaimer .doc-toc__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: #6b6157;
  flex: 0 0 auto;
}
.page-disclaimer .doc-toc__note {
  margin: 18px 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #5d554c;
  border-left: 3px solid var(--autumn);
  padding-left: 12px;
}

/* ---------- 条款章节 ---------- */
.page-disclaimer .doc-section {
  --sec: var(--summer);
  scroll-margin-top: 110px;
  padding-bottom: 6px;
}
.page-disclaimer .doc-section--spring { --sec: var(--spring); }
.page-disclaimer .doc-section--summer { --sec: var(--summer); }
.page-disclaimer .doc-section--autumn { --sec: var(--autumn); }
.page-disclaimer .doc-section--winter { --sec: var(--winter); }
.page-disclaimer .doc-section + .doc-section {
  margin-top: 34px;
  padding-top: 32px;
  border-top: 1px solid var(--paper-300);
}
.page-disclaimer .doc-section:target {
  background: linear-gradient(90deg, rgba(222, 211, 192, 0.55) 0%, rgba(222, 211, 192, 0) 70%);
}
.page-disclaimer .doc-section__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 4.5vw, 1.65rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  flex-wrap: wrap;
}
.page-disclaimer .doc-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--paper-ink);
  background: var(--sec);
  padding: 3px 10px 3px 8px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
}
.page-disclaimer .doc-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  max-width: 72ch;
  display: grid;
  gap: 10px;
}
.page-disclaimer .doc-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.9688rem;
}
.page-disclaimer .doc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 12px;
  height: 2px;
  background: var(--sec, var(--summer));
}

/* ---------- 要点带 ---------- */
.page-disclaimer .doc-band {
  margin: 34px 0;
  background: var(--ink-800);
  color: var(--text);
  padding: 26px 20px 22px;
  border-left: 5px solid var(--autumn);
  clip-path: polygon(0 0, 100% 14px, 100% 100%, 0 calc(100% - 14px));
}
.page-disclaimer .doc-band__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 4vw, 1.5rem);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: #fff;
}
.page-disclaimer .doc-band__lede {
  font-size: 0.875rem;
  color: var(--text-soft);
  margin: 0 0 16px;
  max-width: 52ch;
}

/* ---------- 折叠面板 ---------- */
.page-disclaimer .accordion__item {
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .accordion__item:first-child {
  border-top: 1px solid var(--line);
}
.page-disclaimer .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  background: none;
  border: 0;
  padding: 14px 0;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  color: inherit;
  transition: color 0.25s var(--ease);
}
.page-disclaimer .accordion__trigger:hover {
  color: var(--autumn);
}
.page-disclaimer .accordion__label {
  display: block;
  max-width: 60ch;
}
.page-disclaimer .accordion__body {
  padding: 0 0 16px;
}
.page-disclaimer .accordion__body p {
  margin: 0;
  font-size: 0.9063rem;
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 66ch;
}
.page-disclaimer .acc-mark {
  position: relative;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-top: 7px;
  color: var(--autumn);
}
.page-disclaimer .acc-mark::before,
.page-disclaimer .acc-mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 0.3s var(--ease);
}
.page-disclaimer .acc-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}
.page-disclaimer .acc-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}
.page-disclaimer .accordion__item[data-open] .acc-mark::after {
  transform: scaleY(0);
}

/* ---------- 版本记录（纸底折叠） ---------- */
.page-disclaimer .doc-versions {
  margin-top: 30px;
  padding: 22px 18px;
  background: #fffaf0;
  border: 1px solid var(--paper-300);
  border-top: 4px solid var(--summer);
}
.page-disclaimer .doc-versions__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}
.page-disclaimer .doc-versions .accordion__item {
  border-bottom-color: var(--paper-300);
}
.page-disclaimer .doc-versions .accordion__item:first-child {
  border-top-color: var(--paper-300);
}
.page-disclaimer .doc-versions .accordion__trigger {
  color: var(--paper-ink);
}
.page-disclaimer .doc-versions .accordion__trigger:hover {
  color: #a5531a;
}
.page-disclaimer .doc-versions .accordion__body p {
  color: #4a443c;
}
.page-disclaimer .doc-versions .acc-mark {
  color: var(--autumn);
}
.page-disclaimer .mono {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ---------- 回到开头 ---------- */
.page-disclaimer .doc-backtop {
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--paper-300);
  max-width: none;
}
.page-disclaimer .doc-backtop__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--paper-ink);
  text-decoration: none;
  padding: 9px 16px;
  border: 1px solid var(--paper-ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.page-disclaimer .doc-backtop__link::before {
  content: "↑";
  font-size: 0.9375rem;
}
.page-disclaimer .doc-backtop__link:hover {
  background: var(--paper-ink);
  color: var(--paper-50);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .doc-hero {
    padding: 40px 0 72px;
  }
  .page-disclaimer .doc-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .page-disclaimer .doc-shell {
    padding: 56px 0 76px;
  }
  .page-disclaimer .doc-band {
    padding: 32px 30px 26px;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .doc-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
  }
  .page-disclaimer .doc-toc {
    position: sticky;
    top: 104px;
    align-self: start;
  }
  .page-disclaimer .doc-band {
    margin: 42px 0;
    padding: 34px 38px 28px;
    clip-path: polygon(0 0, 100% 20px, 100% 100%, 0 calc(100% - 20px));
  }
  .page-disclaimer .doc-versions {
    padding: 26px 26px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-toc__link,
  .page-disclaimer .doc-backtop__link,
  .page-disclaimer .acc-mark::before,
  .page-disclaimer .acc-mark::after,
  .page-disclaimer .accordion__trigger {
    transition: none;
  }
}