/* ===== 使用说明与免责声明 · README 终端风格页 ===== */
.page-disclaimer {
  --disc-grid: rgba(31, 26, 23, .045);
  --disc-section-glass: rgba(255, 255, 255, .66);
  --disc-cyan-mist: rgba(11, 107, 106, .045);
  position: relative;
  padding: clamp(20px, 4vw, 56px) 0 clamp(48px, 6vw, 88px);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 84% 6%, rgba(11, 107, 106, .10) 0, transparent 26%),
    radial-gradient(circle at 10% 68%, rgba(217, 122, 13, .06) 0, transparent 32%);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
  overflow-x: clip;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--disc-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--disc-grid) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .55), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .55), transparent 78%);
}

.page-disclaimer__inner {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 终端报头 */
.page-disclaimer__terminal {
  position: relative;
  padding: clamp(28px, 5vw, 48px);
  background-color: var(--night);
  color: var(--paper);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(7, 17, 28, .34);
  overflow: hidden;
}

.page-disclaimer__terminal::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--neon) 0 16%, var(--orange) 40% 52%, transparent 72%);
}

.page-disclaimer__terminal-lines {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--night-line);
  color: var(--night-soft);
  font-size: .8rem;
  letter-spacing: .03em;
}

.page-disclaimer__terminal-path {
  margin: 0 0 16px;
  color: var(--neon);
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: lowercase;
}

.page-disclaimer__terminal-output h1 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(1.85rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-disclaimer__terminal-desc {
  margin: 12px 0 0;
  color: var(--night-soft);
  font-size: .95rem;
  line-height: 1.6;
}

.page-disclaimer__breadcrumbs {
  margin-top: 20px;
}

.page-disclaimer__breadcrumbs .breadcrumbs__item {
  color: var(--night-soft);
  font-size: .75rem;
}

.page-disclaimer__breadcrumbs .breadcrumbs__item[aria-current="page"] {
  color: var(--paper);
}

/* 三栏主布局 */
.page-disclaimer__layout {
  display: grid;
  gap: 24px;
  margin-top: 28px;
  align-items: start;
}

.page-disclaimer__sidebar {
  background-color: var(--night);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 16px 40px rgba(7, 17, 28, .18);
}

.page-disclaimer__filetree-head {
  margin: 0 0 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--night-line);
  color: var(--neon);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.page-disclaimer__filetree-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer__filetree-link {
  display: block;
  padding: 8px 4px;
  border-bottom: 1px dashed rgba(27, 48, 66, .7);
  color: var(--night-soft);
  font-size: .85rem;
  text-decoration: none;
  transition: color .2s ease, padding-left .2s ease, background-color .2s ease;
}

.page-disclaimer__filetree-link::before {
  content: "└─";
  margin-right: 8px;
  color: var(--night-line);
  font-family: var(--font-mono);
  font-size: .8rem;
}

.page-disclaimer__filetree-link:hover,
.page-disclaimer__filetree-link:focus-visible {
  color: var(--paper);
  background-color: rgba(255, 255, 255, .04);
  padding-left: 8px;
}

.page-disclaimer__filetree-link.is-current {
  color: var(--accent);
}

.page-disclaimer__print {
  width: 100%;
  margin-top: 20px;
  color: var(--paper);
  border-color: var(--night-line);
  background-color: rgba(255, 255, 255, .05);
}

.page-disclaimer__print:hover {
  color: var(--orange);
  border-color: var(--orange);
}

.page-disclaimer__sidebar-note {
  margin: 16px 0 0;
  color: var(--night-soft);
  font-size: .75rem;
  line-height: 1.6;
}

.page-disclaimer__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}

/* 章节面板 */
.page-disclaimer__section {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background-color: var(--disc-section-glass);
  border: 1px solid rgba(203, 194, 180, .85);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(31, 26, 23, .05);
  scroll-margin-top: 24px;
}

.page-disclaimer__section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0 64px, var(--line) 64px 100%);
}

.page-disclaimer__section-meta {
  margin: 0 0 8px;
  color: var(--ink-faint);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.page-disclaimer__section-title {
  margin: 0 0 16px;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-disclaimer__section-body {
  color: var(--ink-soft);
  font-size: .9rem;
  line-height: 1.75;
}

.page-disclaimer__section-body p {
  margin: 0 0 14px;
}

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

.page-disclaimer__section-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer__section-body a:hover {
  color: var(--accent);
}

.page-disclaimer__list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer__list li {
  position: relative;
  padding-left: 22px;
}

.page-disclaimer__list li::before {
  content: "―";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
}

/* 数据参考虚线框 */
.page-disclaimer__data-ref {
  margin: 4px 0 18px;
  padding: 18px 20px;
  border: 2px dashed var(--cyan);
  border-radius: var(--radius);
  background-color: var(--disc-cyan-mist);
}

.page-disclaimer__data-ref p {
  margin: 0 0 10px;
  font-size: .88rem;
}

.page-disclaimer__data-ref p:last-child {
  margin-bottom: 0;
}

.page-disclaimer__data-ref strong {
  color: var(--ink);
  font-weight: 800;
}

/* 引用提示 tooltip */
.page-disclaimer__tooltip-wrap {
  position: relative;
  display: inline-block;
  margin-top: 2px;
}

.page-disclaimer__tooltip-trigger {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 2px dotted var(--amber);
  color: var(--amber);
  font-size: .85rem;
  font-weight: 600;
  line-height: 1.4;
  cursor: help;
}

.page-disclaimer__tooltip {
  position: absolute;
  z-index: 40;
  top: calc(100% + 12px);
  left: 0;
  width: 240px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background-color: var(--night);
  color: var(--paper);
  font-size: .8rem;
  line-height: 1.6;
  box-shadow: 0 14px 40px rgba(7, 17, 28, .32);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.page-disclaimer__tooltip-trigger:hover + .page-disclaimer__tooltip,
.page-disclaimer__tooltip-trigger:focus + .page-disclaimer__tooltip,
.page-disclaimer__tooltip-trigger:focus-visible + .page-disclaimer__tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* details 折叠 */
.page-disclaimer__details {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(203, 194, 180, .8);
}

.page-disclaimer__details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-size: .85rem;
  font-weight: 600;
}

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

.page-disclaimer__details summary::before {
  content: "+";
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
}

.page-disclaimer__details[open] summary::before {
  content: "–";
}

.page-disclaimer__details p {
  margin: 14px 0 0 22px;
  color: var(--ink-soft);
  font-size: .85rem;
  line-height: 1.7;
}

/* 版本演进 */
.page-disclaimer__update-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 4px;
}

.page-disclaimer__update-item {
  padding: 14px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper-mid);
  color: var(--ink-soft);
  font-size: .78rem;
  line-height: 1.5;
}

.page-disclaimer__update-item .mono {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 800;
}

.page-disclaimer__update-item.is-current {
  border-color: var(--night);
  background-color: var(--night);
  color: var(--night-soft);
}

.page-disclaimer__update-item.is-current .mono {
  color: var(--neon);
}

/* 右侧图注 */
.page-disclaimer__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(203, 194, 180, .9);
  border-radius: var(--radius);
  background-color: var(--paper-mid);
}

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

.page-disclaimer__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid rgba(203, 194, 180, .7);
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: .75rem;
  line-height: 1.5;
}

/* 底部版本区块 */
.page-disclaimer__version {
  margin-top: 40px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--glass-white);
  backdrop-filter: blur(8px);
}

.page-disclaimer__version-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.page-disclaimer__version-vtag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background-color: var(--accent);
  color: var(--paper);
  font-size: 1.6rem;
  font-weight: 900;
  transform: skewX(-6deg);
  box-shadow: 0 12px 24px rgba(229, 72, 45, .28);
}

.page-disclaimer__version-info {
  flex: 1 1 260px;
}

.page-disclaimer__version-info h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-disclaimer__version-info p {
  margin: 0;
  color: var(--ink-soft);
  font-size: .85rem;
  line-height: 1.7;
}

/* 桌面三栏 */
@media (min-width: 960px) {
  .page-disclaimer__layout {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 28px;
    margin-top: 40px;
  }

  .page-disclaimer__sidebar {
    grid-column: 1 / 4;
    position: sticky;
    top: 28px;
  }

  .page-disclaimer__content {
    grid-column: 4 / 10;
  }

  .page-disclaimer__figure {
    grid-column: 10 / 13;
    position: sticky;
    top: 28px;
  }
}

@media (min-width: 640px) {
  .page-disclaimer__update-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 959px) {
  .page-disclaimer__figure img {
    max-height: 360px;
    object-fit: cover;
    object-position: center;
  }
}

/* 打印样式 */
@media print {
  .page-disclaimer {
    padding: 0;
    background-color: #fff;
  }

  .page-disclaimer__sidebar,
  .page-disclaimer__figure {
    display: none !important;
  }

  .page-disclaimer__layout {
    margin-top: 16px;
  }

  .page-disclaimer__content {
    width: 100%;
  }

  .page-disclaimer__terminal {
    padding: 16px 0;
    background: none !important;
    color: var(--ink) !important;
    box-shadow: none;
  }

  .page-disclaimer__terminal::after {
    display: none;
  }

  .page-disclaimer__terminal-output h1 {
    color: var(--ink) !important;
  }

  .page-disclaimer__terminal-desc,
  .page-disclaimer__terminal-path,
  .page-disclaimer__terminal-lines {
    color: var(--ink-soft);
  }

  .page-disclaimer__breadcrumbs .breadcrumbs__item {
    color: var(--ink-faint);
  }

  .page-disclaimer__breadcrumbs .breadcrumbs__item[aria-current="page"] {
    color: var(--ink);
  }

  .page-disclaimer__version {
    margin-top: 24px;
    border-color: var(--ink);
    background: none !important;
  }
}