/* ===== 使用说明 · page-disclaimer ===== */

.page-disclaimer {
  --dsc-body-width: 720px;
  --dsc-hair: rgba(31, 58, 92, 0.85);
  --dsc-paper: rgba(20, 86, 74, 0.22);
  display: block;
}

/* ---------- 面包屑 ---------- */

.page-disclaimer .disclaimer-crumb {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-disclaimer .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--step-note);
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.page-disclaimer .breadcrumb__list a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-disclaimer .breadcrumb__list a:hover,
.page-disclaimer .breadcrumb__list a:focus-visible {
  color: var(--c-gold);
  border-bottom-color: var(--c-gold);
}

.page-disclaimer .breadcrumb__list > li:last-child {
  color: var(--c-frost);
}

.page-disclaimer .breadcrumb__sep {
  color: var(--c-line);
}

/* ---------- 文档封面 ---------- */

.page-disclaimer .doc-cover {
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-disclaimer .doc-cover__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(22px, 3.6vw, 44px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-m);
  background:
    radial-gradient(120% 150% at 4% 0%, rgba(255, 217, 160, 0.12) 0%, transparent 56%),
    radial-gradient(90% 120% at 96% 100%, rgba(124, 242, 155, 0.08) 0%, transparent 60%),
    linear-gradient(158deg, var(--c-ink) 0%, var(--c-midnight) 74%);
  overflow: hidden;
}

.page-disclaimer .doc-cover__grid::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px dashed rgba(240, 166, 60, 0.2);
  border-radius: calc(var(--radius-m) - 7px);
  pointer-events: none;
}

.page-disclaimer .doc-cover__body {
  position: relative;
  z-index: 1;
}

.page-disclaimer .doc-cover__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0 0 18px;
}

.page-disclaimer .doc-cover__code {
  font-family: var(--font-mono);
  font-size: var(--step-note);
  letter-spacing: 0.2em;
  color: var(--c-gold);
  padding: 5px 10px;
  border: 1px solid var(--c-gold-deep);
  border-radius: var(--radius-s);
  background: rgba(240, 166, 60, 0.08);
}

.page-disclaimer .doc-cover__label {
  font-size: var(--step-note);
  letter-spacing: 0.34em;
  color: var(--c-mist);
}

.page-disclaimer .doc-cover__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(38px, 8vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--c-frost);
}

.page-disclaimer .doc-cover__lead {
  margin: 0 0 22px;
  max-width: 44ch;
  font-size: var(--step-body);
  line-height: 1.85;
  color: var(--c-mist);
}

.page-disclaimer .doc-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--step-note);
  color: var(--c-mist);
}

.page-disclaimer .doc-cover__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-disclaimer .doc-cover__meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-neon);
  box-shadow: 0 0 0 3px rgba(124, 242, 155, 0.14);
}

.page-disclaimer .doc-cover__media {
  position: relative;
  z-index: 1;
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--c-midnight-deep);
}

.page-disclaimer .doc-cover__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-disclaimer .doc-cover__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(78% 68% at 74% 16%, rgba(255, 217, 160, 0.18) 0%, transparent 66%),
    linear-gradient(180deg, transparent 48%, rgba(7, 13, 24, 0.78) 100%);
}

.page-disclaimer .doc-cover__caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-note);
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

/* ---------- 章节 ---------- */

.page-disclaimer .doc-section {
  margin-top: clamp(48px, 7vw, 96px);
  scroll-margin-top: 120px;
}

.page-disclaimer .doc-section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--dsc-hair);
}

.page-disclaimer .doc-section__mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.page-disclaimer .doc-section__index {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-gold);
}

.page-disclaimer .doc-section__kicker {
  font-family: var(--font-mono);
  font-size: var(--step-note);
  letter-spacing: 0.3em;
  color: var(--c-mist);
}

.page-disclaimer .doc-section__kicker::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--c-line);
}

.page-disclaimer .doc-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.16;
  color: var(--c-frost);
}

.page-disclaimer .doc-section__summary {
  margin: 0;
  font-size: var(--step-body);
  line-height: 1.7;
  color: var(--c-mist);
  border-left: 2px solid var(--c-gold-deep);
  padding-left: 14px;
}

.page-disclaimer .doc-section__body {
  display: grid;
  gap: clamp(16px, 2vw, 22px);
  margin-top: clamp(20px, 2.8vw, 32px);
  max-width: var(--dsc-body-width);
}

.page-disclaimer .doc-section__body > p {
  margin: 0;
  font-size: var(--step-body);
  line-height: 1.85;
  color: var(--c-frost);
  opacity: 0.86;
}

.page-disclaimer .doc-section__body a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 166, 60, 0.42);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-disclaimer .doc-section__body a:hover,
.page-disclaimer .doc-section__body a:focus-visible {
  color: #ffd9a0;
  border-bottom-color: var(--c-glow);
}

/* ---------- 状态图例 ---------- */

.page-disclaimer .doc-legend {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--dsc-hair);
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--dsc-hair);
}

.page-disclaimer .doc-legend__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 2px;
  align-items: center;
  padding: 14px 16px;
  background: rgba(11, 18, 32, 0.86);
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-disclaimer .doc-legend__item:hover,
.page-disclaimer .doc-legend__item:focus-visible {
  background: var(--c-ink-light);
  transform: translateX(3px);
  outline: none;
}

.page-disclaimer .doc-legend__item:focus-visible {
  box-shadow: inset 0 0 0 2px var(--c-gold);
}

.page-disclaimer .doc-legend__dot {
  grid-row: 1 / span 2;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex: none;
}

.page-disclaimer .doc-legend__dot--todo {
  background: var(--c-mist);
  box-shadow: 0 0 0 4px rgba(147, 166, 180, 0.14);
}

.page-disclaimer .doc-legend__dot--live {
  background: var(--c-neon);
  box-shadow: 0 0 0 4px rgba(124, 242, 155, 0.16);
}

.page-disclaimer .doc-legend__dot--done {
  background: var(--c-line);
  box-shadow: 0 0 0 4px rgba(31, 58, 92, 0.24);
}

.page-disclaimer .doc-legend__dot--post {
  background: var(--c-alert);
  box-shadow: 0 0 0 4px rgba(226, 96, 63, 0.16);
}

.page-disclaimer .doc-legend__name {
  font-size: var(--step-h4);
  font-weight: 700;
  color: var(--c-frost);
}

.page-disclaimer .doc-legend__note {
  grid-column: 2;
  font-size: var(--step-note);
  line-height: 1.65;
  color: var(--c-mist);
  opacity: 0.62;
  transform: translateY(-2px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), color 0.3s var(--ease);
}

.page-disclaimer .doc-legend__item:hover .doc-legend__note,
.page-disclaimer .doc-legend__item:focus-visible .doc-legend__note,
.page-disclaimer .doc-legend__item:focus-within .doc-legend__note {
  opacity: 1;
  color: var(--c-frost);
  transform: translateY(0);
}

/* ---------- 折叠细节 ---------- */

.page-disclaimer .doc-fold {
  border: 1px solid var(--dsc-hair);
  border-radius: var(--radius-s);
  background: var(--dsc-paper);
  overflow: hidden;
}

.page-disclaimer .doc-fold__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  font-size: var(--step-body);
  font-weight: 600;
  color: var(--c-frost);
  cursor: pointer;
  list-style: none;
  transition: background 0.25s var(--ease);
}

.page-disclaimer .doc-fold__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .doc-fold__summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--c-gold);
}

.page-disclaimer .doc-fold[open] .doc-fold__summary::before {
  content: "−";
}

.page-disclaimer .doc-fold__summary:hover {
  background: rgba(20, 86, 74, 0.4);
}

.page-disclaimer .doc-fold__summary:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -2px;
}

.page-disclaimer .doc-fold__body {
  padding: 4px 18px 18px;
}

.page-disclaimer .doc-check {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-disclaimer .doc-check li {
  position: relative;
  padding-left: 20px;
  font-size: var(--step-body);
  line-height: 1.8;
  color: var(--c-mist);
}

.page-disclaimer .doc-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: var(--c-gold-deep);
}

.page-disclaimer .doc-check strong {
  color: var(--c-frost);
  font-weight: 700;
}

/* ---------- 收束区 ---------- */

.page-disclaimer .doc-outro {
  margin-top: clamp(52px, 7vw, 104px);
  padding-bottom: clamp(38px, 5vw, 64px);
}

.page-disclaimer .doc-outro__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-m);
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(240, 166, 60, 0.14) 0%, transparent 58%),
    linear-gradient(140deg, var(--c-night) 0%, var(--c-midnight) 78%);
}

.page-disclaimer .doc-outro__text {
  margin: 0;
  font-size: var(--step-h4);
  line-height: 1.7;
  color: var(--c-frost);
}

.page-disclaimer .doc-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .doc-coord {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-disclaimer .doc-coord__svg {
  display: block;
  width: 100%;
  height: 44px;
}

.page-disclaimer .doc-coord__label {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--step-note);
  letter-spacing: 0.22em;
  color: var(--c-mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-disclaimer .doc-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .doc-cover__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-disclaimer .doc-section__head {
    grid-template-columns: minmax(120px, 170px) minmax(0, 1fr);
    column-gap: clamp(20px, 3vw, 34px);
    row-gap: 12px;
    align-items: start;
  }

  .page-disclaimer .doc-section__mark {
    grid-row: 1 / span 2;
    align-self: start;
    padding-top: 6px;
  }

  .page-disclaimer .doc-section__title,
  .page-disclaimer .doc-section__summary {
    grid-column: 2;
  }

  .page-disclaimer .doc-outro__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-disclaimer .doc-outro__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .doc-section__body {
    margin-left: calc(170px + clamp(20px, 3vw, 34px));
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .doc-legend__item,
  .page-disclaimer .doc-legend__note,
  .page-disclaimer .doc-fold__summary,
  .page-disclaimer .breadcrumb__list a,
  .page-disclaimer .doc-section__body a {
    transition: none;
  }

  .page-disclaimer .doc-legend__item:hover,
  .page-disclaimer .doc-legend__item:focus-visible,
  .page-disclaimer .doc-legend__item:hover .doc-legend__note,
  .page-disclaimer .doc-legend__item:focus-visible .doc-legend__note {
    transform: none;
  }
}