/* LegalTech CC — Prototype-only styles
 * Lives in /prototype/. Not shipped to production.
 * Shares :root tokens with _tokens.css.
 *
 * v1.1 — 段落/卡片/章节紧凑化；新增脚注与代码块复制样式
 */

/* 内页沿用首页的深色门厅顶栏；内容区继续使用暖纸色，降低跨页跳色。 */
.inner-topbar {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 20px;
  padding: 0;
  z-index: 1;
  isolation: isolate;
  min-height: 76px;
  border-bottom-color: rgba(230, 243, 238, .14);
}

.inner-topbar .brand {
  grid-column: 1;
  gap: 10px;
  color: #fff;
  font-weight: 760;
  line-height: 1.2;
}

.inner-topbar .nav {
  grid-column: 2;
  gap: 4px;
}

.inner-topbar::before {
  position: absolute;
  z-index: -1;
  top: 0;
  right: 50%;
  bottom: 0;
  width: 100vw;
  transform: translateX(50%);
  background: var(--ink);
  content: "";
}

.inner-topbar .brand .brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
}

.inner-topbar .brand small {
  margin-top: 3px;
  color: rgba(238, 247, 243, .6);
  font-size: 10.5px;
  line-height: 1.2;
  letter-spacing: .04em;
}

.inner-topbar .nav a,
.inner-topbar .nav .dropdown-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 13px;
  color: rgba(237, 246, 242, .7);
  font-size: 13.5px;
  font-weight: 640;
}

.inner-topbar .nav a:hover,
.inner-topbar .nav .dropdown-trigger:hover,
.inner-topbar .nav a:focus-visible,
.inner-topbar .nav .dropdown-trigger:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}

.inner-topbar .nav a.is-active {
  color: #fff;
  background: transparent;
}

.inner-topbar .nav a.is-active::after,
.inner-topbar .nav .dropdown-trigger.is-active::before {
  position: absolute;
  right: 12px;
  bottom: 3px;
  left: 12px;
  height: 2px;
  border-radius: 999px;
  background: var(--jade);
  content: "";
}

.inner-topbar .nav .dropdown-trigger.is-active {
  color: #fff;
  background: transparent;
}

.inner-topbar .dropdown-trigger::after {
  color: rgba(237, 246, 242, .5);
}

.inner-topbar .dropdown-panel {
  width: 320px;
  min-width: 0;
  border-color: rgba(234, 248, 242, .14);
  background: #152021;
  box-shadow: 0 20px 42px rgba(0, 0, 0, .28);
}

.inner-topbar .dropdown-panel a {
  display: block;
  color: #eef6f2;
  min-height: 44px;
}

.inner-topbar .dropdown-panel a small {
  display: block;
  color: rgba(238, 246, 242, .58);
}

.inner-topbar .dropdown-panel a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}

@media (max-width: 820px) {
  .inner-topbar {
    display: flex;
  }

  .inner-topbar .nav-dropdown {
    position: relative;
  }

  .inner-topbar .dropdown-panel {
    right: auto;
    left: 0;
    width: min(320px, calc(100vw - 32px));
    min-width: 0;
  }

  .inner-topbar .nav {
    flex-wrap: wrap;
    overflow: visible;
  }
}

@media (max-width: 660px) {
  .inner-topbar .nav > a,
  .inner-topbar .nav .dropdown-trigger {
    flex: 0 0 auto;
    min-height: 44px;
    padding: 7px 10px;
    font-size: 12.5px;
  }
}

.prototype-page {
  padding: 36px 0 56px;
}

.prototype-page h1 {
  font-size: var(--t-h1);
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin: 0 0 14px;
}

.prototype-page h2 {
  font-size: var(--t-h2);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.prototype-page h3 {
  font-size: var(--t-h3);
  margin: 0 0 8px;
}

.prototype-page .lede {
  max-width: 720px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
  margin: 0 0 24px;
}

.ia-card {
  margin-bottom: 24px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.ia-tree {
  margin: 12px 0 0;
  padding: 14px 18px;
  background: var(--paper-2);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
  overflow-x: auto;
}

.ia-tree code {
  background: transparent;
  color: inherit;
}

.map {
  width: 100%;
  margin-top: 14px;
  border-collapse: collapse;
}

.map th,
.map td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.map th {
  background: var(--paper-2);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
}

.map code {
  padding: 2px 6px;
  background: var(--paper-2);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
}

.rules {
  margin: 14px 0 0;
  padding-left: 22px;
  line-height: 1.7;
}

.rules li code,
.note code {
  padding: 2px 6px;
  background: var(--paper-2);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--emerald-deep);
}

.note {
  margin: 12px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--jade);
  background: rgba(37, 196, 155, .08);
  color: var(--ink-2);
  font-size: 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.grid-2 > div {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.grid-2 h3 {
  color: var(--teal);
  margin-bottom: 10px;
}

.grid-2 ul {
  margin: 0;
  padding-left: 22px;
  line-height: 1.7;
  color: var(--ink-2);
}

.nav-mock {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.nav-mock .brand-mock {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 760;
}

.nav-mock .nav-items {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-mock .nav-items a {
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-weight: 600;
  font-size: 13.5px;
  text-decoration: none;
}

.nav-mock .nav-items a.hot {
  background: linear-gradient(135deg, var(--emerald-deep), var(--emerald-mid));
  color: #fff;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* Markdown-rendered page styles — 紧凑 */
.md-page {
  padding: 24px 0 56px;
}

.md-page article {
  max-width: 760px;
  margin: 0 auto;
}

.md-page h1 {
  font-size: clamp(32px, 4.2vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin: 10px 0 14px;
  font-weight: 800;
}

.md-page .lede {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: clamp(15.5px, 1.3vw, 18px);
  line-height: 1.65;
}

.md-body {
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-2);
}

.md-body h2 {
  font-size: clamp(22px, 2.8vw, 30px);
  margin: 28px 0 10px;
  letter-spacing: -0.03em;
}

.md-body h3 {
  font-size: 19px;
  margin: 22px 0 8px;
}

.md-body p {
  margin: 0 0 12px;
}

.md-body ul,
.md-body ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

.md-body li + li {
  margin-top: 4px;
}

.md-body li::marker {
  color: var(--teal);
}

.md-body blockquote {
  margin: 14px 0;
  padding: 12px 18px;
  border-left: 3px solid var(--jade);
  background: rgba(37, 196, 155, .08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-2);
}

.md-body code {
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--paper-2);
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 13px;
}

/* 代码块：相对定位容器，承载 copy 按钮 */
.md-body .code-wrap {
  position: relative;
  margin: 14px 0 18px;
}

.md-body .code-wrap pre {
  margin: 0;
}

.md-body pre {
  margin: 14px 0 18px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--paper-2);
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
  overflow-x: auto;
}

.md-body pre code {
  padding: 0;
  background: transparent;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--teal);
  background: rgba(255, 255, 255, .85);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.copy-btn:hover {
  background: #fff;
  border-color: var(--jade);
  color: var(--emerald-deep);
}

.copy-btn.is-copied {
  color: var(--success);
  border-color: var(--success);
}

/* 脚注 — 学术风格但不喧宾夺主 */
.md-body sup.fnref {
  margin-left: 2px;
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 700;
  vertical-align: super;
  line-height: 0;
}

.md-body sup.fnref a {
  display: inline-block;
  min-width: 18px;
  padding: 0 4px;
  border-radius: 4px;
  background: rgba(37, 196, 155, .14);
  text-decoration: none;
  color: var(--teal);
}

.md-body sup.fnref a:hover {
  background: var(--jade);
  color: #fff;
}

.md-body ol.footnotes {
  margin: 32px 0 0;
  padding: 14px 18px 14px 36px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-2);
}

.md-body ol.footnotes li {
  margin-bottom: 6px;
}

.md-body ol.footnotes li::marker {
  color: var(--teal);
  font-weight: 700;
}

.md-body ol.footnotes li:target {
  background: rgba(37, 196, 155, .12);
  border-radius: 4px;
  margin-left: -8px;
  padding-left: 8px;
}

.canonical-cta {
  margin: 28px 0 0;
  padding: 18px 22px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
}

.canonical-cta p {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, .82);
  font-size: 14.5px;
  line-height: 1.6;
}

.canonical-cta strong {
  color: var(--jade);
}

.src-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  font-family: var(--mono);
}

.src-note code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--paper-2);
  color: var(--ink-2);
}

@media (max-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .nav-mock {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* Markdown 渲染表格 */
.table-wrap {
  margin: 18px 0;
  overflow-x: auto;
}
.md-page table,
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}
.md-page th,
.md-page td,
.table-wrap th,
.table-wrap td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.md-page th,
.table-wrap th {
  background: rgba(11, 116, 101, 0.06);
  color: var(--teal);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.md-page tr:last-child td,
.table-wrap tr:last-child td {
  border-bottom: none;
}

/* 演示数据 banner — 全局样式（不再依赖 _training.css） */
.callout-demo {
  margin: 0 0 20px;
  padding: 12px 16px;
  background: rgba(11, 116, 101, 0.06);
  border: 1px dashed rgba(11, 116, 101, 0.35);
  border-radius: 10px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.55;
}
.callout-demo strong {
  color: var(--teal);
  margin-right: 6px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}