:root {
  --bg: #f3ede2;
  --bg-soft: #fffaf4;
  --paper: rgba(255, 251, 245, 0.94);
  --paper-strong: #fffdf9;
  --line: rgba(62, 52, 40, 0.12);
  --line-strong: rgba(62, 52, 40, 0.18);
  --ink: #1a2130;
  --ink-soft: #4e5867;
  --ink-faint: #7b8491;
  --teal: #2b766f;
  --teal-soft: rgba(43, 118, 111, 0.1);
  --rust: #b2573f;
  --rust-soft: rgba(178, 87, 63, 0.12);
  --gold: #a27a32;
  --blue: #3e7cb1;
  --blue-soft: rgba(62, 124, 177, 0.1);
  --shadow: 0 24px 60px rgba(55, 41, 24, 0.12);
  --shadow-soft: 0 10px 28px rgba(55, 41, 24, 0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  background:
    radial-gradient(circle at top left, rgba(43, 118, 111, 0.18), transparent 26%),
    radial-gradient(circle at top right, rgba(178, 87, 63, 0.16), transparent 30%),
    linear-gradient(180deg, #f7f2ea 0%, #f0e8db 56%, #eee4d7 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video {
  display: block;
  max-width: 100%;
}

code {
  padding: 0.16rem 0.4rem;
  border-radius: 999px;
  background: rgba(43, 118, 111, 0.1);
  color: var(--teal);
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.15) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.22), transparent 80%);
  pointer-events: none;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid rgba(62, 52, 40, 0.08);
  background: rgba(245, 239, 229, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.08rem;
}

.brand strong,
h1,
h2,
h3 {
  font-family: "Iowan Old Style", "Georgia", "Songti SC", serif;
  letter-spacing: -0.03em;
}

.brand strong {
  font-size: 1.12rem;
}

.brand-kicker,
.eyebrow,
.mini-kicker,
.date-label,
.card-meta,
.stat-box-label,
.tag-label {
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.74rem;
  color: var(--ink-faint);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
  font-size: 0.94rem;
  color: var(--ink-soft);
}

.topnav a {
  position: relative;
}

.topnav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.18s ease;
  background: linear-gradient(90deg, var(--teal), var(--rust));
}

.topnav a:hover::after,
.topnav a:focus-visible::after {
  transform: scaleX(1);
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.6rem 1.2rem 4rem;
}

.hero-section,
.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.85fr);
  gap: 1.2rem;
  align-items: stretch;
}

.hero-copy,
.detail-copy,
.hero-stat-card,
.hero-focus-card,
.detail-metric,
.result-card,
.summary-card,
.timeline-card,
.chart-card,
.branch-card,
.finding-card,
.evidence-card,
.media-card,
.fix-card,
.empty-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.hero-copy,
.detail-copy {
  position: relative;
  overflow: hidden;
  padding: 2.7rem;
  background:
    radial-gradient(circle at top right, rgba(43, 118, 111, 0.14), transparent 26%),
    linear-gradient(150deg, rgba(255, 252, 247, 0.98), rgba(246, 239, 229, 0.88));
  box-shadow: var(--shadow);
}

.hero-copy::after,
.detail-copy::after {
  content: "";
  position: absolute;
  inset: auto -3.4rem -3.4rem auto;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(178, 87, 63, 0.18), transparent 70%);
  pointer-events: none;
}

.hero-copy h1,
.detail-copy h1 {
  margin: 0.5rem 0 0;
  font-size: clamp(3rem, 6vw, 5.2rem);
  line-height: 0.95;
  max-width: 12ch;
}

.hero-slogan {
  margin: 1rem 0 0;
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 42rem;
}

.hero-summary,
.section-description,
.card-desc,
.chart-note,
.media-copy p,
.timeline-outcome {
  color: var(--ink-soft);
}

.hero-summary {
  margin-top: 0.9rem;
  max-width: 42rem;
}

.hero-chip-row,
.entity-chip-row,
.focus-list,
.detail-metric-column,
.link-row,
.crumb-row,
.chart-legend,
.stats-row,
.more-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-chip,
.entity-chip,
.tag-label,
.badge,
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  font-size: 0.84rem;
}

.hero-chip,
.entity-chip {
  border: 1px solid rgba(43, 118, 111, 0.16);
  background: rgba(255, 255, 255, 0.76);
  color: var(--teal);
}

.badge {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}

.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.badge-secondary {
  background: rgba(162, 122, 50, 0.12);
  color: var(--gold);
}

.badge-soft {
  background: rgba(162, 122, 50, 0.12);
  color: var(--gold);
}

.status-tag {
  margin-left: 0.75rem;
  font-size: 0.75rem;
  vertical-align: middle;
}

.status-tag.done {
  background: rgba(62, 124, 177, 0.12);
  color: var(--blue);
  border: 1px solid rgba(62, 124, 177, 0.18);
}

.status-tag.wip {
  background: rgba(178, 87, 63, 0.12);
  color: var(--rust);
  border: 1px solid rgba(178, 87, 63, 0.18);
}

.hero-side,
.detail-side {
  display: grid;
  gap: 1rem;
}

.hero-stat-card,
.hero-focus-card {
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow-soft);
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.hero-stat,
.detail-metric {
  border: 1px solid rgba(62, 52, 40, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
  padding: 0.92rem 1rem;
}

.hero-stat strong,
.detail-metric strong {
  display: block;
  margin-top: 0.32rem;
  font-size: 1.4rem;
}

.focus-list {
  display: grid;
  margin-top: 1rem;
}

.focus-item {
  display: grid;
  gap: 0.2rem;
  padding: 0.92rem 1rem;
  border: 1px solid rgba(62, 52, 40, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
}

.focus-item-main {
  gap: 0.65rem;
}

.focus-item strong {
  font-size: 1.02rem;
}

.focus-item span,
.focus-item p {
  color: var(--ink-soft);
}

.focus-item p {
  margin: 0;
}

.section-block {
  margin-top: 2.4rem;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1.2rem;
  margin-bottom: 1rem;
}

.section-title-row h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.section-description {
  max-width: 34rem;
  margin: 0;
  text-align: right;
}

.date-group + .date-group {
  margin-top: 1.1rem;
}

.date-label {
  display: inline-flex;
  align-items: center;
  min-width: 8rem;
  padding: 0.42rem 0.8rem;
  margin-bottom: 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(178, 87, 63, 0.16);
  background: rgba(255, 255, 255, 0.7);
  color: var(--rust);
}

.card-grid,
.summary-grid,
.chart-grid,
.compare-card-grid,
.branch-grid,
.finding-grid,
.evidence-grid,
.media-grid,
.fix-grid {
  display: grid;
  gap: 1rem;
}

.timeline-group-list {
  display: grid;
  gap: 1.4rem;
}

.card-grid,
.summary-grid,
.chart-grid,
.compare-card-grid,
.branch-grid,
.finding-grid,
.evidence-grid,
.fix-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.media-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.media-grid-preview {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.result-card,
.summary-card,
.timeline-card,
.chart-card,
.branch-card,
.finding-card,
.evidence-card,
.fix-card {
  position: relative;
  overflow: hidden;
  padding: 1.3rem;
}

.result-card .card-accent {
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--rust), var(--blue));
}

.card-topline,
.card-footer-line {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 0.75rem;
}

.card-footer-line {
  align-items: center;
  margin-top: 1rem;
}

.result-card h3,
.summary-card h3,
.timeline-card h3,
.chart-card h3,
.finding-card h3,
.evidence-card h3,
.media-copy h3,
.branch-card h3,
.fix-card h3 {
  margin: 0.75rem 0 0.55rem;
  font-size: 1.3rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.timeline-group {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.timeline-group-rail {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.9rem;
  min-height: 100%;
  padding-bottom: 1rem;
}

.timeline-group-rail::after {
  content: "";
  position: absolute;
  left: 0.82rem;
  top: 6.95rem;
  bottom: -1.4rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(43, 118, 111, 0.28), rgba(178, 87, 63, 0.22));
}

.timeline-group:last-child .timeline-group-rail::after {
  display: none;
}

.timeline-group-node {
  position: relative;
  left: 0.17rem;
  top: 0;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  border: 2px solid rgba(43, 118, 111, 0.35);
  background: var(--paper-strong);
  box-shadow: 0 0 0 8px rgba(43, 118, 111, 0.06);
}

.timeline-date-card {
  min-width: 8.6rem;
  padding: 0.8rem 0.95rem 0.9rem;
  border: 1px solid rgba(62, 52, 40, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
}

.timeline-date-ym,
.timeline-group-date {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

.timeline-date-ym {
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.timeline-date-day {
  display: block;
  margin: 0.18rem 0 0.1rem;
  font-family: "Iowan Old Style", "Georgia", "Songti SC", serif;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--ink);
}

.timeline-group-date {
  font-size: 0.8rem;
  color: var(--rust);
}

.timeline-group-cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.timeline-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--teal), var(--rust));
}

.card-desc,
.timeline-outcome {
  margin: 0;
  overflow-wrap: anywhere;
}

.timeline-outcome {
  margin-top: 0.9rem;
}

.stats-row {
  margin-top: 1rem;
}

.stats-row.compact {
  margin-top: 0.85rem;
}

.stat-box {
  min-width: 7.2rem;
  flex: 1 1 0;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(62, 52, 40, 0.08);
}

.stat-box-value {
  display: block;
  margin-top: 0.26rem;
  font-size: 1.06rem;
  color: var(--rust);
}

.tag-label {
  background: rgba(162, 122, 50, 0.12);
  color: var(--gold);
}

.text-link,
.inline-link {
  color: var(--teal);
  font-weight: 600;
}

.link-row {
  margin-top: 1rem;
}

.link-row .inline-link {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: rgba(43, 118, 111, 0.08);
}

.crumb-row {
  align-items: center;
  color: var(--ink-faint);
  font-size: 0.92rem;
}

.crumb-row span {
  color: rgba(123, 132, 145, 0.6);
}

.empty-panel {
  display: grid;
  place-items: center;
  min-height: 12rem;
  padding: 1.4rem;
  text-align: center;
  color: var(--ink-soft);
}

.chart-body {
  margin-top: 1rem;
}

.chart-surface {
  border-radius: var(--radius-md);
  border: 1px solid rgba(62, 52, 40, 0.08);
  background: rgba(255, 255, 255, 0.76);
  padding: 0.8rem;
}

.line-chart {
  width: 100%;
  height: auto;
}

.chart-grid-line,
.chart-axis-line {
  stroke: rgba(62, 52, 40, 0.12);
  stroke-width: 1;
}

.chart-axis-label {
  fill: var(--ink-faint);
  font-size: 11px;
  font-family: "Avenir Next", "PingFang SC", sans-serif;
}

.chart-axis-label-left {
  text-anchor: end;
}

.chart-point {
  cursor: pointer;
  transition: transform 0.14s ease;
}

.chart-point:hover {
  transform: scale(1.18);
}

.chart-legend {
  margin-top: 0.8rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.legend-dot {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
}

.chart-note {
  margin: 0.9rem 0 0;
  font-size: 0.92rem;
}

.chart-empty {
  display: grid;
  place-items: center;
  min-height: 14rem;
  color: var(--ink-soft);
}

.chart-tooltip {
  position: absolute;
  z-index: 6;
  max-width: 18rem;
  padding: 0.5rem 0.7rem;
  border-radius: 12px;
  background: rgba(25, 32, 43, 0.92);
  color: #fff;
  font-size: 0.84rem;
  pointer-events: none;
  transform: translate(-50%, -100%);
}

.bar-chart {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(5.5rem, 1fr));
  gap: 0.85rem;
  align-items: end;
  min-height: 16rem;
}

.bar-column {
  display: grid;
  gap: 0.55rem;
  cursor: pointer;
}

.bar-value {
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.bar-rail {
  position: relative;
  height: 10rem;
  border-radius: 999px;
  border: 1px solid rgba(62, 52, 40, 0.08);
  background: rgba(240, 233, 223, 0.78);
  overflow: hidden;
}

.bar-fill {
  position: absolute;
  inset: auto 0 0;
  border-radius: 999px;
}

.bar-label {
  font-size: 0.88rem;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.compare-mini-card {
  border-radius: 20px;
  border: 1px solid rgba(62, 52, 40, 0.08);
  background: rgba(255, 255, 255, 0.82);
  padding: 1.1rem;
}

.compare-mini-card h4 {
  margin: 0.18rem 0 0.5rem;
  font-size: 1rem;
  line-height: 1.45;
}

.media-card {
  padding: 0;
  overflow: hidden;
}

.media-surface {
  aspect-ratio: 16 / 10;
  background: linear-gradient(180deg, rgba(236, 229, 218, 0.88), rgba(223, 214, 202, 0.92));
  overflow: hidden;
}

.media-surface img,
.media-surface video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-copy {
  padding: 1rem 1.1rem 1.15rem;
}

.more-link-row {
  margin-top: 1rem;
  justify-content: flex-end;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.4rem 2.4rem;
  color: var(--ink-faint);
  font-size: 0.92rem;
}

.noscript-panel {
  max-width: 48rem;
  margin: 3rem auto;
  padding: 2rem;
}

@media (max-width: 1100px) {
  .media-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .hero-section,
  .detail-hero,
  .card-grid,
  .summary-grid,
  .chart-grid,
  .compare-card-grid,
  .branch-grid,
  .finding-grid,
  .evidence-grid,
  .media-grid,
  .fix-grid,
  .timeline-group,
  .timeline-group-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-title-row,
  .site-footer {
    flex-direction: column;
    align-items: start;
  }

  .section-description {
    text-align: left;
  }

  .topbar {
    padding-inline: 1rem;
  }

  .timeline-group-rail {
    padding-bottom: 0;
  }

  .timeline-group-rail::after {
    display: none;
  }

  .timeline-date-card {
    min-width: 0;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding-inline: 0.9rem;
  }

  .hero-copy,
  .detail-copy {
    padding: 2rem 1.45rem;
  }

  .hero-copy h1,
  .detail-copy h1 {
    max-width: none;
    font-size: clamp(2.45rem, 13vw, 3.7rem);
  }

  .hero-stat-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .bar-chart {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}