.page-disclaimer {
  --disc-gutter: clamp(16px, 4vw, 48px);
  --disc-col: 268px;
  display: block;
  background: var(--ink-900);
  color: var(--text);
  padding-bottom: clamp(48px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  max-width: var(--shell-w);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 52px) var(--disc-gutter) 0;
}

.page-disclaimer .crumbs {
  margin: 0;
}

.page-disclaimer .disc-hero__kicker {
  margin: clamp(18px, 3vw, 30px) 0 0;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-disclaimer .disc-hero__title {
  margin: 10px 0 0;
  font-size: clamp(34px, 6.5vw, 58px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-disclaimer .disc-hero__title::after {
  content: "";
  display: block;
  width: 68px;
  height: 3px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 72%, transparent);
}

.page-disclaimer .disc-hero__lead {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 窄幅横幅 ---------- */
.page-disclaimer .disc-band {
  max-width: var(--shell-w);
  margin: clamp(28px, 5vw, 56px) auto 0;
  padding: 0 var(--disc-gutter);
}

.page-disclaimer .disc-band .media {
  margin: 0;
}

.page-disclaimer .disc-band img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 两栏骨架 ---------- */
.page-disclaimer .disc-layout {
  max-width: var(--shell-w);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 64px) var(--disc-gutter) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-disclaimer .disc-index,
.page-disclaimer .disc-body {
  min-width: 0;
}

/* ---------- 左栏索引 ---------- */
.page-disclaimer .disc-index__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-disclaimer .disc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .disc-index__list li {
  margin: 0;
}

.page-disclaimer .disc-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid transparent;
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-disclaimer .disc-index__list a:hover,
.page-disclaimer .disc-index__list a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background-image: linear-gradient(90deg, rgba(53, 240, 224, .12), rgba(53, 240, 224, 0));
}

.page-disclaimer .disc-index__num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-disclaimer .disc-index__list a:hover .disc-index__num,
.page-disclaimer .disc-index__list a:focus-visible .disc-index__num {
  color: var(--cyan);
}

/* ---------- 版本记录 ---------- */
.page-disclaimer .disc-versions {
  margin-top: 24px;
  padding: 14px 16px 16px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
}

.page-disclaimer .disc-versions summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-disclaimer .disc-versions summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-versions summary::after {
  content: "+";
  float: right;
  color: var(--muted);
}

.page-disclaimer .disc-versions[open] summary::after {
  content: "–";
}

.page-disclaimer .disc-versions ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-disclaimer .disc-versions ul .mono {
  color: var(--cyan);
  margin-right: 6px;
}

/* ---------- 右栏正文 ---------- */
.page-disclaimer .disc-sec {
  scroll-margin-top: 112px;
  padding: 0 0 clamp(24px, 3.5vw, 38px);
}

.page-disclaimer .disc-sec + .disc-sec {
  padding-top: clamp(24px, 3.5vw, 38px);
}

.page-disclaimer .disc-sec__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 4px;
}

.page-disclaimer .disc-sec__idx {
  flex: 0 0 auto;
  padding: 3px 8px 2px;
  border: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.2;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-disclaimer .disc-sec__title {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 27px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-disclaimer .disc-sec p {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-disclaimer .disc-sec a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 224, .35);
}

.page-disclaimer .disc-sec a:hover {
  border-bottom-color: var(--cyan);
}

.page-disclaimer .disc-list {
  list-style: none;
  max-width: 68ch;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

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

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 11px;
  height: 1px;
  background: var(--cyan);
}

.page-disclaimer .kw {
  color: var(--white);
  border-bottom: 1px solid rgba(184, 255, 60, .6);
  padding-bottom: 1px;
}

.page-disclaimer .disc-sec__rule {
  max-width: 68ch;
  height: 11px;
  margin: 26px 0 0;
  background-image: repeating-linear-gradient(115deg, var(--line) 0 1px, transparent 1px 10px);
  opacity: .9;
}

/* ---------- 联系块与延伸入口 ---------- */
.page-disclaimer .disc-contact {
  max-width: 68ch;
  margin: 22px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .disc-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-disclaimer .disc-contact__key {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-disclaimer .disc-contact__val {
  min-width: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-disclaimer .disc-contact__val a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 224, .35);
}

.page-disclaimer .disc-links {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .disc-contact__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 980px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: var(--disc-col) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
    align-items: start;
  }

  .page-disclaimer .disc-index {
    position: sticky;
    top: 104px;
  }

  .page-disclaimer .disc-hero__lead {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-index__list a {
    transition: none;
  }
}