/* ===== 使用说明 · page-disclaimer ===== */
.page-disclaimer {
  position: relative;
  overflow: clip;
  padding: clamp(72px, 9vw, 124px) 0 clamp(64px, 8vw, 104px);
  background:
    radial-gradient(780px 420px at 88% -8%, rgba(25, 240, 195, .10), transparent 68%),
    radial-gradient(640px 380px at 2% 54%, rgba(108, 92, 231, .10), transparent 72%),
    var(--c-pitch);
  color: var(--c-white);
}

.page-disclaimer .doc-atmos {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(140, 255, 228, .05) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(140, 255, 228, .035) 0 1px, transparent 1px 88px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .28) 46%, rgba(0, 0, 0, 0) 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .28) 46%, rgba(0, 0, 0, 0) 86%);
}

.page-disclaimer .doc-hero,
.page-disclaimer .doc-banner,
.page-disclaimer .doc-layout,
.page-disclaimer .doc-outro {
  position: relative;
  z-index: 1;
}

/* ---- 首屏 ---- */
.page-disclaimer .doc-hero {
  padding-bottom: clamp(26px, 3.6vw, 40px);
}

.page-disclaimer .crumb {
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-disclaimer .doc-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-disclaimer .doc-hero h1 {
  margin: 16px 0 0;
  max-width: 22ch;
  font-size: clamp(38px, 6vw, 78px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--c-white);
}

.page-disclaimer .doc-lede {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.15vw, 16.5px);
  line-height: 1.82;
  color: var(--c-mist);
}

.page-disclaimer .doc-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: clamp(26px, 3.4vw, 36px) 0 0;
  padding: clamp(18px, 2.4vw, 24px) 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}

.page-disclaimer .doc-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-disclaimer .doc-facts__n {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--c-cyan);
}

/* ---- 顶部图形 ---- */
.page-disclaimer .doc-banner {
  margin: clamp(30px, 4.4vw, 52px) 0 0;
}

.page-disclaimer .doc-banner img {
  display: block;
  width: 100%;
  height: clamp(180px, 26vw, 320px);
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-panel);
  filter: saturate(.9) brightness(.92);
}

/* ---- 骨架 ---- */
.page-disclaimer .doc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 44px);
  margin-top: clamp(44px, 6vw, 72px);
}

/* ---- 章节索引 ---- */
.page-disclaimer .doc-index {
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.page-disclaimer .doc-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-disclaimer .doc-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-disclaimer .doc-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--c-white);
  text-decoration: none;
  background: var(--glass);
  border: 1px solid var(--line-mid);
  border-radius: var(--radius-pill);
  transition: border-color var(--step-mid) var(--ease), color var(--step-mid) var(--ease), transform var(--step-fast) var(--ease);
}

.page-disclaimer .doc-index__link:hover,
.page-disclaimer .doc-index__link:focus-visible {
  border-color: var(--c-cyan-soft);
  color: var(--c-cyan-soft);
  transform: translateX(4px);
}

.page-disclaimer .doc-index__n {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

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

.page-disclaimer .doc-sec {
  padding-bottom: clamp(38px, 5vw, 58px);
}

.page-disclaimer .doc-sec + .doc-sec {
  padding-top: clamp(38px, 5vw, 58px);
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .doc-sec__head {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-disclaimer .doc-sec__head::after {
  content: "";
  flex: 1 1 auto;
  min-width: 24px;
  height: 1px;
  background: linear-gradient(90deg, var(--c-grass-mid), transparent);
  transform: skewY(-1.2deg);
}

.page-disclaimer .doc-sec__n {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 50px);
  font-weight: 300;
  line-height: .86;
  letter-spacing: -.02em;
  color: var(--c-cyan);
  opacity: .6;
}

.page-disclaimer .doc-sec__t {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 400;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-disclaimer .doc-body p {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-disclaimer .doc-body p + p {
  margin-top: 14px;
}

.page-disclaimer .doc-body p + .doc-list,
.page-disclaimer .doc-body .doc-list + p,
.page-disclaimer .doc-body .doc-vers + p {
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-disclaimer .doc-body .link-arrow {
  color: var(--c-cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mid);
  transition: color var(--step-fast) var(--ease), border-color var(--step-fast) var(--ease);
}

.page-disclaimer .doc-body .link-arrow:hover,
.page-disclaimer .doc-body .link-arrow:focus-visible {
  color: var(--c-white);
  border-bottom-color: var(--c-cyan);
}

/* ---- 条目列表 ---- */
.page-disclaimer .doc-list {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .doc-list li {
  display: grid;
  gap: 6px;
  padding: 14px 16px 14px 18px;
  background: linear-gradient(90deg, rgba(16, 56, 42, .72), rgba(16, 56, 42, .16));
  border-left: 2px solid var(--c-grass-mid);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: border-color var(--step-mid) var(--ease), background var(--step-mid) var(--ease);
}

.page-disclaimer .doc-list li:hover {
  border-left-color: var(--c-cyan);
  background: linear-gradient(90deg, rgba(27, 90, 65, .74), rgba(16, 56, 42, .16));
}

.page-disclaimer .doc-list__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--c-cyan);
  word-break: break-word;
}

.page-disclaimer .doc-list__v {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-mist);
  word-break: break-word;
}

/* ---- 版本三段 ---- */
.page-disclaimer .doc-vers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
}

.page-disclaimer .doc-vers__cell {
  display: grid;
  gap: 8px;
  padding: 20px 18px 22px;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--c-cyan);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: border-color var(--step-mid) var(--ease), background var(--step-mid) var(--ease);
}

.page-disclaimer .doc-vers__cell:hover {
  border-color: var(--line-mid);
  background: var(--glass-strong);
}

.page-disclaimer .doc-vers__k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-mist);
}

.page-disclaimer .doc-vers__v {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5vw, 48px);
  font-weight: 300;
  line-height: 1;
  color: var(--c-cyan);
}

.page-disclaimer .doc-vers__d {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---- 尾部 ---- */
.page-disclaimer .doc-outro {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: clamp(48px, 6vw, 76px);
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .doc-outro__note {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-mist);
}

/* ---- 桌面：右侧索引 + 宽幅正文 ---- */
@media (min-width: 900px) {
  .page-disclaimer .doc-layout {
    grid-template-columns: minmax(0, 1fr) 226px;
    gap: clamp(44px, 5vw, 84px);
    align-items: start;
  }

  .page-disclaimer .doc-body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-disclaimer .doc-index {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 108px;
    padding: 4px 0 4px 20px;
    border-top: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-disclaimer .doc-index__list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-disclaimer .doc-index__link {
    padding: 7px 0;
    white-space: normal;
    font-size: 13.5px;
    color: var(--c-mist);
    background: none;
    border: 0;
    border-radius: 0;
  }

  .page-disclaimer .doc-index__link:hover,
  .page-disclaimer .doc-index__link:focus-visible {
    color: var(--c-cyan-soft);
  }

  .page-disclaimer .doc-vers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .doc-lede {
    max-width: 62ch;
  }

  .page-disclaimer .doc-body p {
    max-width: 66ch;
  }
}