/* 两汉侍中 · 浅色纸本档案 · #7E0C6E（与时间轴统一） */
:root {
  --primary: #7e0c6e;
  --primary-2: #a33d90;
  --primary-3: #7e0c6e;
  --deep: #faf6f9;
  --deep-2: #fffafd;
  --ink: #1a0a18;
  --ink-2: #5c4558;
  --ink-3: #8a6d84;
  --line: rgba(126, 12, 110, 0.16);
  --line-2: rgba(126, 12, 110, 0.1);
  --panel: #ffffff;
  --panel-2: #faf6f9;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-display: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  --max: 1180px;
  --r: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--ink);
  background: var(--deep);
  line-height: 1.55;
  background-image:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(126, 12, 110, 0.08), transparent 55%),
    linear-gradient(180deg, #faf6f9 0%, #f3ebf3 40%, #ebe0eb 100%);
  background-attachment: fixed;
}

body::before {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

a {
  color: var(--primary);
}

/* solid header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(126, 12, 110, 0.12);
  background: rgba(255, 252, 255, 0.94);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--primary) 0%, #4a0640 100%);
  border: 1px solid rgba(126, 12, 110, 0.35);
}

.brand-kicker {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.brand-title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.brand-title--calli {
  font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", "楷体", var(--font-display);
  font-size: 1.65rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  margin: 0;
}

.header-meta {
  font-size: 0.82rem;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-variant-numeric: tabular-nums;
}

.header-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--primary-2);
}

.nav-link {
  color: var(--ink);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  transition: border-color 0.2s, color 0.2s;
}

.nav-link:hover {
  border-color: var(--primary-2);
  color: var(--primary-3);
}

/* 三页顶栏导航 */
.site-nav {
  position: sticky;
  top: 72px;
  z-index: 35;
  max-width: var(--max);
  margin: 0 auto;
  padding: 10px 22px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  background: rgba(255, 252, 255, 0.94);
  border-bottom: 1px solid rgba(126, 12, 110, 0.1);
}

.site-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.86rem;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.site-nav a:hover {
  color: var(--primary);
  border-color: rgba(126, 12, 110, 0.25);
}

.site-nav a.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.site-nav .nav-ext {
  margin-left: auto;
  font-size: 0.8rem;
  opacity: 0.9;
}

/* graph stage — light archive frame */
.graph-stage {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 28px auto 0;
  height: min(68vh, 600px);
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid rgba(126, 12, 110, 0.14);
  background: #fffafd;
  box-shadow: 0 8px 32px rgba(126, 12, 110, 0.08);
}

#graph-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#graph-canvas:active {
  cursor: grabbing;
}

.graph-overlay {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: min(400px, 88%);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
  background: linear-gradient(
    90deg,
    rgba(255, 250, 253, 0.94) 0%,
    rgba(255, 250, 253, 0.7) 55%,
    transparent 100%
  );
}

.graph-overlay .eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--primary);
}

.graph-overlay .hero-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.8vw, 2.6rem);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.graph-overlay .hero-title em {
  font-style: normal;
  color: var(--primary);
}

.graph-overlay .hero-sub {
  margin: 0 0 18px;
  max-width: 28em;
  color: var(--ink-2);
  font-size: 0.92rem;
}

.graph-legend {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.75rem;
  color: var(--ink-3);
  pointer-events: none;
}

.graph-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lg-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.lg-hi {
  background: var(--primary);
  box-shadow: 0 0 0 2px rgba(126, 12, 110, 0.35);
}
.lg-mid {
  background: var(--primary-2);
}
.lg-lo {
  background: var(--primary-3);
  opacity: 0.7;
}

.graph-hint {
  margin-top: 14px;
  font-size: 0.72rem;
  color: var(--ink-3);
}

.graph-toolbar {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 3;
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: 10px;
  background: rgba(255, 252, 255, 0.92);
  border: 1px solid rgba(126, 12, 110, 0.16);
}

/* layout */
.layout {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 20px 80px;
}

.toolbar {
  border-radius: var(--r);
  padding: 16px;
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
  background: rgba(255, 252, 255, 0.88);
  border: 1px solid rgba(126, 12, 110, 0.12);
}

.search-wrap input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s;
}

.search-wrap input::placeholder {
  color: var(--ink-3);
}

.search-wrap input:focus {
  border-color: var(--primary-2);
}

.filters,
.sort-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-2);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.chip:hover {
  color: var(--ink);
  border-color: var(--primary-2);
}

.chip:active {
  transform: scale(0.97);
}

.chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.results-head {
  padding: 4px 2px 14px;
  color: var(--ink-3);
  font-size: 0.88rem;
}

/* person grid */
.person-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
}

.person-card {
  text-align: left;
  border-radius: var(--r);
  padding: 16px;
  background: #fff;
  border: 1px solid rgba(126, 12, 110, 0.1);
  cursor: pointer;
  font-family: inherit;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 120px;
  transition: border-color 0.22s, transform 0.22s, background 0.22s;
  box-shadow: 0 2px 10px rgba(126, 12, 110, 0.04);
}

.person-card:hover {
  border-color: rgba(126, 12, 110, 0.3);
  background: #faf6f9;
  transform: translateY(-2px);
}

.person-card:active {
  transform: scale(0.985);
}

.person-card:focus-visible {
  outline: 2px solid var(--primary-2);
  outline-offset: 2px;
}

.pc-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.pc-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.pc-style {
  margin: 2px 0 0;
  font-size: 0.8rem;
  color: var(--ink-3);
}

.pc-dyn {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(126, 12, 110, 0.2);
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
  background: rgba(126, 12, 110, 0.06);
}

.pc-meta {
  font-size: 0.78rem;
  color: var(--ink-2);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
}

.tag {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
}

.pc-foot {
  margin-top: auto;
  font-size: 0.72rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.empty {
  margin-top: 24px;
  padding: 36px 20px;
  border-radius: var(--r);
  text-align: center;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line-2);
}

/* detail drawer — light panel */
.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 10, 24, 0.35);
  z-index: 50;
}

.detail {
  position: fixed;
  top: 0;
  right: 0;
  width: min(480px, 100%);
  height: 100dvh;
  z-index: 60;
  overflow-y: auto;
  padding: 28px 24px 40px;
  background: #fffafd;
  border-left: 1px solid rgba(126, 12, 110, 0.14);
  box-shadow: -16px 0 40px rgba(126, 12, 110, 0.12);
  animation: slide-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--ink);
}

@keyframes slide-in {
  from {
    transform: translateX(20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.detail-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  color: var(--ink-2);
}

.detail-close:hover {
  color: var(--ink);
  border-color: var(--primary-2);
}

.detail h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  margin: 8px 0 6px;
  letter-spacing: 0.06em;
}

.detail .sub {
  color: var(--ink-2);
  margin: 0 0 18px;
  font-size: 0.9rem;
}

.detail section {
  margin-bottom: 22px;
}

.detail h3 {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 10px;
  font-weight: 500;
}

.quote-block {
  margin: 0 0 10px;
  padding: 12px 14px;
  border-left: 2px solid var(--primary);
  background: rgba(126, 12, 110, 0.08);
  border-radius: 0 8px 8px 0;
  font-size: 0.88rem;
  color: var(--ink);
}

.quote-block .src {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--ink-3);
}

.rel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rel-list li {
  font-size: 0.88rem;
  padding: 8px 10px;
  border-radius: 8px;
  background: #faf6f9;
  border: 1px solid rgba(126, 12, 110, 0.1);
}

.rel-list .type {
  color: var(--primary);
  font-weight: 500;
  margin-right: 6px;
}

.bio-list {
  margin: 0;
  padding-left: 1.2em;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bio-list li {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(126, 12, 110, 0.1);
  border: 1px solid var(--line-2);
}

/* timeline */
.tl-page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 16px 80px;
  position: relative;
  z-index: 1;
}

.tl-stage {
  position: relative;
  height: min(68vh, 580px);
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #241020 0%, #160814 100%);
}

#tl-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

.tl-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: min(360px, 90%);
  padding: 28px 22px;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(18, 4, 16, 0.92), transparent);
}

.tl-toolbar {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 3;
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: 10px;
  background: rgba(255, 252, 255, 0.92);
  border: 1px solid rgba(126, 12, 110, 0.16);
}

.tl-list {
  margin-top: 18px;
  display: grid;
  gap: 6px;
  max-height: 320px;
  overflow-y: auto;
}

.tl-row {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  font-size: 0.86rem;
  cursor: pointer;
}

.tl-row:hover {
  border-color: rgba(196, 122, 224, 0.3);
}

.tl-year {
  font-variant-numeric: tabular-nums;
  color: var(--primary-3);
  font-weight: 500;
  min-width: 4.5em;
}

.tl-dyn {
  font-size: 0.74rem;
  color: var(--ink-3);
}

.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 28px 16px 48px;
  font-size: 0.8rem;
  color: var(--ink-3);
  border-top: 1px solid rgba(126, 12, 110, 0.1);
}

@media (max-width: 720px) {
  .site-header {
    padding: 14px 16px;
  }
  .graph-stage {
    margin: 12px;
    height: min(58vh, 460px);
  }
  .graph-overlay {
    width: 100%;
    background: linear-gradient(180deg, rgba(18, 4, 16, 0.94) 0%, transparent 90%);
    justify-content: flex-start;
    padding-top: 20px;
  }
  .tl-stage {
    margin: 0 10px;
    height: min(55vh, 420px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .person-card,
  .chip,
  .detail {
    transition: none;
    animation: none;
  }
}